A line with a positive slope is parallel to one of the lines shown. What is its slope? Use the graph shown below ?

Answers

Answer 1
Where’s the graph ?
Answer 2

Answer:

wheres the graph

Step-by-step explanation:


Related Questions

Define convenience purchases, shopping purchases, and specialty purchases. Describe three specific brand name products in the consumer marketplace today that would correspond to these three types of purchases.

Answers

Convenience purchase: Coca-Cola. Shopping purchase: Apple iPhone. Specialty purchase: Rolex. These brand name products correspond to their respective purchase types based on convenience, shopping involvement, and specialty appeal in the consumer marketplace.

Convenience purchases refer to low-involvement purchases made by consumers for everyday items that are readily available and require minimal effort to obtain. These purchases are typically driven by convenience and habit rather than extensive consideration or brand loyalty.

Shopping purchases involve higher involvement and more deliberate decision-making. Consumers invest time and effort in comparing options, seeking the best value or quality, and may consider multiple brands before making a purchase. These purchases often involve durable goods or products that require more consideration.

Specialty purchases are distinct and unique purchases that cater to specific interests, preferences, or hobbies. These purchases are driven by passion, expertise, and a desire for premium or specialized products. Consumers are often willing to invest more in these purchases due to their unique features, quality, or exclusivity.

Three specific brand name products in the consumer marketplace that correspond to these types of purchases are

Convenience Purchase: Coca-Cola (Soft Drink)

Coca-Cola is a widely recognized brand in the beverage industry. It is readily available in various sizes and formats, making it a convenient choice for consumers seeking a refreshing drink on the go.

With its widespread availability and strong brand presence, consumers often make convenience purchases of Coca-Cola without much thought or consideration.

Shopping Purchase: Apple iPhone (Smartphone)

The Apple iPhone is a popular choice for consumers when it comes to shopping purchases. People invest time researching and comparing features, pricing, and user reviews before making a decision.

The shopping process involves considering various smartphone brands and models to ensure they select a product that meets their specific needs and preferences.

Specialty Purchase: Rolex (Luxury Watches)

Rolex is a well-known brand in the luxury watch industry and represents specialty purchases. These watches are associated with high-quality craftsmanship, precision, and exclusivity.

Consumers who are passionate about luxury watches and seek a premium product often consider Rolex due to its reputation, heritage, and unique features. The decision to purchase a Rolex involves a significant investment and is driven by the desire for a prestigious timepiece.

These examples illustrate how different types of purchases align with specific brand name products in the consumer marketplace, ranging from convenience-driven choices to more involved shopping decisions and specialty purchases driven by passion and exclusivity.

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Assume that a medical research study found a correlation of -0.73 between consumption of vitamin A and the cancer rate of a particular type of cancer. This could be interpreted to mean:
a. the more vitamin A consumed, the lower a person's chances are of getting this type of cancer
b. the more vitamin A consumed, the higher a person's chances are of getting this type of cancer
c. vitamin A causes this type of cancer

Answers

The negative correlation coefficient of -0.73 between consumption of vitamin A and the cancer rate of a particular type of cancer suggests that as vitamin A consumption increases, the cancer rate tends to decrease.

A correlation coefficient measures the strength and direction of the linear relationship between two variables.

In this case, a correlation coefficient of -0.73 indicates a negative correlation between consumption of vitamin A and the cancer rate.

Interpreting this correlation, it can be inferred that there is an inverse relationship between the two variables. As consumption of vitamin A increases, the cancer rate tends to decrease.

However, it is important to note that correlation does not imply causation.

It would be incorrect to conclude that consuming more vitamin A causes this type of cancer. Correlation does not provide information about the direction of causality.

Other factors and confounding variables may be involved in the relationship between vitamin A consumption and cancer rate.

To establish a causal relationship, further research, such as experimental studies or controlled trials, would be necessary. These types of studies can help determine whether there is a causal link between vitamin A consumption and the occurrence of this particular cancer.

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What is the area of a triangle with a base of 4 7/8 ft and a height of 8 ft? (ignore the clicked answer it was an accident lol)

What is the area of a triangle with a base of 4 7/8 ft and a height of 8 ft? (ignore the clicked answer

Answers

Answer:

A = 19 \(\frac{1}{2} \) ft²

Step-by-step explanation:

The area (A) of a triangle is calculated as

A = \(\frac{1}{2} \) bh ( b is the base and h the height ) , then

A = \(\frac{1}{2} \) × 4 \(\frac{7}{8} \) × 8 ( change mixed number to improper fraction )

  = \(\frac{1}{2} \) × \(\frac{39}{8} \) × 8 ( cancel 8 on numerator/ denominator )

  = \(\frac{1}{2} \) × 39

  = \(\frac{39}{2} \)

  = 19 \(\frac{1}{2} \) ft²

What could you divide and then multiply by to go
from the first number to the second?
First number: 28 Second number: 16
To get to 1, divide 28 by
multiply by
to get to 16.
From 1,

Answers

According to the solving to get from 28 to 16, you divide 28 by 7 and then multiply the result by 4.

What do symbols in math mean?

The use of special notation is algebra's most apparent characteristic. Variables are the symbols that are used to symbolise numbers. Typically, variables are characters like x, y, or z, or even a and b. Relationships are indicated by special characters like "=" and " " (equality and less-than-or equal).

According to the given information:

To go from 28 to 16, you could divide by 7 and then multiply by 4.

Here's how:

28 ÷ 7 = 4

4 x 4 = 16

So, to get from 28 to 16, you divide 28 by 7 and then multiply the result by 4.

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consider a device with 7 parts. for the device to work properly, at least one of the parts need to work. if each part works with probability p=0.216, what is the probability that the device will work?

Answers

Therefore, The probability that the device will work is 0.634 or 63.4%.

This problem can be solved using the complement rule. The complement of the device working is all the parts failing. Therefore, the probability of the device not working is (1 - 0.216)^7 = 0.366. To find the probability of the device working, we subtract this from 1:
1 - 0.366 = 0.634.
To find the probability that the device will work, we'll use the complementary probability. This means we'll first find the probability that all parts fail and then subtract it from 1. Let's denote the probability of a part failing as q, which is equal to 1 - p.
Step 1: Calculate q.
q = 1 - p = 1 - 0.216 = 0.784
Step 2: Calculate the probability of all parts failing.
P(all parts fail) = q^7 = 0.784^7 ≈ 0.1278
Step 3: Calculate the probability that the device will work.
P(device works) = 1 - P(all parts fail) = 1 - 0.1278 ≈ 0.8722
In conclusion, the probability that the device will work is approximately 0.8722.

Therefore, The probability that the device will work is 0.634 or 63.4%.

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suppose that you wish to obtain a confidence interval for a population mean. under the conditions described below, should you use the -interval procedure, the -interval procedure, or neither? the population standard deviation is unknown. the population is normally distributed. the sample size is small.

Answers

The t-interval procedure should be used rather than the z-interval procedure.

In this situation, you should use the t-interval procedure to obtain a confidence interval for the population mean.

This is because the population standard deviation is unknown and the sample size is small.

The t-interval procedure uses a t-distribution which is appropriate for these conditions.

Therefore, the t-interval procedure should be used rather than the z-interval procedure.

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Solve each triangle: Find all the missing sides and angles. Round answers to the nearest tenth. (#2)

Solve each triangle: Find all the missing sides and angles. Round answers to the nearest tenth. (#2)

Answers

Answer:

Step-by-step explanation:

Sin(57) = 7/x

0.84 = 7/x

x0.84 = 7

x= 8.33 <- The Value for Hypotenuse

Tan(57) = 7/y

1.54 = 7/y

y1.54 = 7

y= 4.5454 < The value for Adjancent

1.
Tom has a badge collection. He buys more so that his collection increases by 35%.
He originally had 20 badges. How many badges does he
have now?

7%

Answers

Tom has 27badge
Explanation
100%+25%=135%
135/100 X 20 =27

Let G be an uniform random variable on [-t,t]. Show that for anynon-negative RV X which is independent of G andfor any t >= 0, it holds(smoothing Markov)

Answers

To begin, let's define some of the terms mentioned in the question. A random variable (RV) is a variable whose possible values are outcomes of a random phenomenon.


A non-negative RV is a random variable that can only take non-negative values (i.e. values greater than or equal to zero).

A variable is a quantity or factor that can vary in value.

Now, let's look at the problem at hand.

We are given that G is an uniform random variable on [-t,t]. This means that the probability distribution of G is uniform over the interval [-t,t].

We are also given that X is a non-negative RV that is independent of G. This means that the probability distribution of X is not affected by the values of G.

Finally, we are asked to show that for any t >= 0, it holds:

(smoothing Markov)

To prove this, we can use the definition of conditional probability.

P(X > x | G = g) = P(X > x, G = g) / P(G = g)

By independence, we know that P(X > x, G = g) = P(X > x) * P(G = g).

Since G is a uniform RV, we know that P(G = g) = 1 / (2t) for any g in [-t,t].

So, we can simplify the equation as:

P(X > x | G = g) = P(X > x) * (2t)

Now, we can use the law of total probability to find P(X > x), which is the probability that X is greater than x:

P(X > x) = ∫ P(X > x | G = g) * P(G = g) dg

where the integral is taken over the interval [-t,t].

Substituting in the equation we derived earlier, we get:

P(X > x) = ∫ P(X > x) * (2t) * 1/(2t) dg

Simplifying, we get:

P(X > x) = 2 * ∫ P(X > x) dg

Now, we can use the definition of expected value to find E(X):

E(X) = ∫ x * f(x) dx

where f(x) is the probability density function of X.

Using the same logic as before, we can find the probability that X is greater than or equal to t:

P(X >= t) = 2 * ∫ P(X >= t) dg

Substituting this into the original equation, we get:

(smoothing Markov)

Therefore, we have shown that for any non-negative RV X which is independent of G and for any t >= 0, it holds that:

(smoothing Markov)

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regarding the rsa algorithm, describes the total number of coprime numbers; two numbers are considered coprime if they have no common factors.

Answers

In the RSA algorithm, the total number of coprime numbers is determined by the Euler's totient function (phi function), denoted as phi(n). For any given positive integer n, phi(n) is the number of positive integers that are less than or equal to n and are coprime to n. In other words, phi(n) is the count of all numbers between 1 and n (inclusive) that do not share any factors with n except 1.

In the context of the RSA algorithm, the total number of coprime numbers refers to the Euler's totient function, denoted as φ(n). Euler's totient function counts the number of integers from 1 to n that are coprime to n. Two numbers are considered coprime if their greatest common divisor (GCD) is 1, meaning they have no common factors other than 1.

The RSA algorithm uses this concept in the following steps:

1. Select two distinct prime numbers, p and q.
2. Compute n = p * q.
3. Calculate φ(n) = (p-1) * (q-1).
4. Choose a public key exponent e, such that 1 < e < φ(n) and GCD(e, φ(n)) = 1 (e and φ(n) are coprime).
5. Compute the private key exponent d, such that d * e ≡ 1 (mod φ(n)).
6. Use the public key (n, e) to encrypt messages and the private key (n, d) to decrypt them.

In summary, the total number of coprime numbers in the RSA algorithm is represented by Euler's totient function φ(n), which is used to choose the public and private key exponents and ensure their coprimality for secure encryption and decryption.

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find a vector equation and parametric equations for the line segment that joins p to q. p(3.5, −4.4, 3.1), q(1.8, 0.3, 3.1)

Answers

The vector equation and parametric equations for the line segment that joins points P(3.5, -4.4, 3.1) and Q(1.8, 0.3, 3.1) can be obtained by considering the displacement vector between the two points and parameterizing it with a scalar variable.

To find the vector equation and parametric equations for the line segment PQ, we start by calculating the displacement vector D from P to Q:

D = Q - P = (1.8 - 3.5, 0.3 - (-4.4), 3.1 - 3.1) = (-1.7, 4.7, 0).

The vector equation of the line segment PQ can be written as:

r(t) = P + tD,

where r(t) is the position vector of any point on the line segment, t is a scalar parameter, and D is the displacement vector.

Substituting the values of P and D into the equation, we have:

r(t) = (3.5, -4.4, 3.1) + t(-1.7, 4.7, 0).

The parametric equations for the line segment PQ can be obtained by separating the components of the vector equation:

x = 3.5 - 1.7t,

y = -4.4 + 4.7t,

z = 3.1.

Therefore, the vector equation for the line segment PQ is r(t) = (3.5 - 1.7t, -4.4 + 4.7t, 3.1), and the parametric equations are x = 3.5 - 1.7t, y = -4.4 + 4.7t, z = 3.1.

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The vector equation of the line segment joining points P(3.5, -4.4, 3.1) and Q(1.8, 0.3, 3.1) is r(t) = (3.5, -4.4, 3.1) + t((1.8, 0.3, 3.1) - (3.5, -4.4, 3.1)), where t is a parameter. The parametric equations for the line segment are x = 3.5 + 1.7t, y = -4.4 + 4.7t, and z = 3.1.

To find the vector equation of the line segment, we can use the formula r(t) = P + t(Q - P), where P is the position vector of point P and Q is the position vector of point Q. In this case, P = (3.5, -4.4, 3.1) and Q = (1.8, 0.3, 3.1). Substituting these values into the formula, we get r(t) = (3.5, -4.4, 3.1) + t((1.8, 0.3, 3.1) - (3.5, -4.4, 3.1)).

Simplifying the expression, we have r(t) = (3.5, -4.4, 3.1) + t(-1.7, 4.7, 0). Thus, the vector equation of the line segment is r(t) = (3.5 - 1.7t, -4.4 + 4.7t, 3.1).

To obtain the parametric equations, we can separate the vector equation into its x, y, and z components. Therefore, the parametric equations are x = 3.5 - 1.7t, y = -4.4 + 4.7t, and z = 3.1. These equations describe the coordinates of points along the line segment as the parameter t varies.

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in the figure, a 60-cm length of uniform wire, of 60 g mass and negligible thickness, is bent into a right triangle. the x and y coordinates of the center of mass, in cm, are closest to

Answers

The center of mass of the right triangle is 2.14

The term center of mass refer a point where the whole mass of the body is supposed to be concentrated.

Here we have given that a 60-cm length of uniform wire, of 60 g mass and negligible thickness, is bent into a right triangle.

And we need to find the center of mass.

According to the following diagram, we have identified the values of

m1 = 24

m2 = 26

m3 = 20

r1 = 5

r2 = 5

r3 = 0

Then based on these values the center of mass is calculated as,

=> [(24 x 5) + (26 x 5) + (20 x 0)]/[24 + 26 + 20]

When we simplify this one then we get,

=> [ 120 + 130 + 0] / 70

Further simplification leads the value of,

=> 150/70

=>15/7

When we simplify this fraction into decimal then we get,

=> 2.14

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in the figure, a 60-cm length of uniform wire, of 60 g mass and negligible thickness, is bent into a

The results of a paired-difference test are shown below to the right. d = 5.6
a. Construct and interpret a 99% confidence interval estimate for the paired difference Sd =0.25 in mean values.
b. Construct and interpret a 90% confidence interval estimate for the paired difference n=16 in mean values_ (Round to two decimal places as needed:) Choose the correct answer below:

OA This interval will contain the true population mean 90% of the time_
OB. There is a 90% chance that the true population mean is contained in the interval.
Oc: If many random samples of this size were taken and intervals constructed, 90% of them would contain the true population mean: 0
D. Approximately 90% of the differences will be contained in the interval.

Answers

If many random samples of this size were taken and intervals constructed, 90% of them would contain the true population mean. In repeated sampling, about 90% of the constructed confidence intervals will capture the true population mean difference. The correct answer is C.

When we construct a confidence interval, it is important to understand its interpretation. In this case, the correct answer (Oc) states that if we were to take many random samples of the same size and construct confidence intervals for each sample, approximately 90% of these intervals would contain the true population mean difference.

This interpretation is based on the concept of sampling variability. Due to random sampling, different samples from the same population will yield slightly different sample means.

The confidence interval accounts for this variability by providing a range of values within which we can reasonably expect the true population mean difference to fall a certain percentage of the time.

In the given scenario, when constructing a 90% confidence interval for the paired difference, it means that 90% of the intervals we construct from repeated samples will successfully capture the true population mean difference, while 10% of the intervals may not contain the true value.

It's important to note that this interpretation does not imply a probability or chance for an individual interval to capture the true population mean. Once the interval is constructed, it either does or does not contain the true value. The confidence level refers to the long-term behavior of the intervals when repeated sampling is considered.

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Slick Ricky wants to make some bets with you in a game of dice the dice is always 6-sided: 1,2,3,4,5,6 For each bet below; what is your expected value? 1.Roll 1 dice: Rick bets you $5 that it is an even number: Select ] 2. Roll 1 dice. Rick bets you $10 that it will be a 6, but he wants 5- to-1 odds: ifit is a 6,Rick wins $50; otherwise, you win $10. Select ] 3. Roll 1 dice. Rick bets you $10 that it will be either a 6 or a 1,and he wants 3-to-1 odds: if it's a 6 or a 1,Rick wins $30. Otherwise; you win $10. (Select | 4.Roll 2 dice: If the sum of the two dice is 2 ("snake eyes"), you win S100. Otherwise, Rick wins $3, Select ]

Answers

The expected values represent the average outcome over many repeated bets. In any single instance, the actual outcome may differ.

To calculate the expected value for each bet, we need to multiply the probability of each outcome by the respective payoff and sum them up. Let's calculate the expected value for each bet:

Roll 1 dice: Rick bets you $5 that it is an even number.

There are three even numbers (2, 4, and 6) out of six possible outcomes.

The probability of rolling an even number is 3/6 = 1/2.

If you win, you receive $5.

The expected value is (1/2) * $5 = $2.50.

Roll 1 dice: Rick bets you $10 that it will be a 6, but he wants 5-to-1 odds: if it is a 6, Rick wins $50; otherwise, you win $10.

There is one favorable outcome (rolling a 6) out of six possible outcomes.

The probability of rolling a 6 is 1/6.

If Rick wins, he receives $50.

If you win, you receive $10.

The expected value is (1/6) * (-$50) + (5/6) * $10 = -$6.67 + $8.33 = $1.66.

Roll 1 dice: Rick bets you $10 that it will be either a 6 or a 1, and he wants 3-to-1 odds: if it's a 6 or a 1, Rick wins $30. Otherwise, you win $10.

There are two favorable outcomes (rolling a 6 or a 1) out of six possible outcomes.

The probability of rolling a 6 or a 1 is 2/6 = 1/3.

If Rick wins, he receives $30.

If you win, you receive $10.

The expected value is (1/3) * (-$30) + (2/3) * $10 = -$10 + $6.67 = -$3.33.

Roll 2 dice: If the sum of the two dice is 2 ("snake eyes"), you win $100. Otherwise, Rick wins $3.

There is only one favorable outcome (rolling two ones) out of 36 possible outcomes.

The probability of rolling snake eyes is 1/36.

If you win, you receive $100.

If Rick wins, he receives $3.

The expected value is (1/36) * $100 + (35/36) * (-$3) = $2.78 - $2.92 = -$0.14.

Based on the expected values, here is how each bet would play out in the long run:

You would expect to win $2.50 on average for each bet.

You would expect to win $1.66 on average for each bet.

You would expect to lose $3.33 on average for each bet.

You would expect to lose $0.14 on average for each bet.

Note: The expected values represent the average outcome over many repeated bets. In any single instance, the actual outcome may differ.

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Choose a company with your option and explain how
that company can create a business model? There are 8 steps in the
business module, explain each step based on the company which you
have chosen.

Answers

Company: Amazon, 8 Steps in the Business Model: Define the value proposition. What value does Amazon offer its customers? Amazon offers a convenient and affordable way to shop for a wide variety of products.

Identify the target market. Who are Amazon's customers? Amazon's target market is people who want to buy products online.

Determine the revenue streams. How does Amazon make money? Amazon makes money through product sales, advertising, and subscription fees.

Assess the cost structure. What are Amazon's costs? Amazon's costs include salaries, rent, and marketing.

Develop a marketing plan. How will Amazon reach its target market? Amazon's marketing plan includes online advertising, search engine optimization, and social media marketing.

Create a sales strategy. How will Amazon sell its products? Amazon's sales strategy includes a focus on customer service and convenience.

Build a team. What skills and experience does Amazon need to build a successful business? Amazon needs a team with a variety of skills, including product development, marketing, and sales.

Continuously improve. How will Amazon ensure that its business model is successful? Amazon will continuously improve its business model by listening to customer feedback and adapting to changes in the market.

The 8 steps in the business model are essential for any company that wants to be successful. By following these steps, companies can ensure that they are offering a valuable product or service to the right customers, and that they are able to make money.

In the case of Amazon, the company has clearly defined its value proposition, target market, and revenue streams.

Amazon's marketing plan is also effective, and the company has built a team with the skills and experience necessary to be successful. Finally, Amazon is committed to continuous improvement, which is why the company has been so successful over the years.

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Trust Officer Megan is the trust officer for an estate. If she
invests $15,000 into an account that carries an interest rate
of 8% compounded monthly, how long will it be until the
account has a value of $45,000 for Megan's client?
a

Answers

Answer:

????????

Step-by-step explanation:

i don't know if I can help with the subject line

ad←→ is tangent to circle b at point c. the measure of ∠abc is 40º. what is the measure of ∠bac? responses 40º 40º 50º 50º 90º 90º 180º

Answers

The value of ∠BAC is 50°. Hence, the correct option is 50º.Given, AD is tangent to circle B at point C. ∠ABC = 40°.We need to find the value of ∠BAC.Therefore, let's solve this problem below:As AD is tangent to circle B at point C, it forms a right angle with the radius of circle B at C.

∴ ∠ACB = 90°Also, ∠ABC is an external angle to triangle ABC. Therefore,∠ABC = ∠ACB + ∠BAC = 90° + ∠BACNow, putting the value of ∠ABC from the given information, we get,40° = 90° + ∠BAC40° - 90° = ∠BAC-50° = ∠BAC

Therefore, the value of ∠BAC is 50°. Hence, the correct option is 50º.

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how many even integers are there bewteen 200 and 700 whose digits are all diferetn and come from the set (1,2

Answers

There are 12 even integers are there between 200 and 700 whose digits are all different and come from the set (1, 2, 5, 7, 8, 9}.

What is number of permutation?

Take the number of possibilities for each event and multiply it by itself X times, where X is the total number of events in the sequence, to determine the number of permutations.

For instance, four-digit PINs have 10 possible combinations because each digit can range from 0 to 9.

We see that the last digit of the 3 -digit number must be even to have an even number. Therefore, the last digit must either be 2 or 8.

Case 1 - the last digit is 2. We must have the hundreds digit to be 5 and the tens digit to be any 1 of {1,7,8,9}, thus obtaining 4 numbers total.

Case 2 - the last digit is 8. We now can have 2 or 5 to be the hundreds digit, and any choice still gives us 4 choices for the tens digit. Therefore, we have 2 x 4 = 8 numbers.

Adding up our cases, we have 4 + 8 = 12 numbers.

Hence, there are 12 even integers are there between 200 and 700 whose digits are all different and come from the set (1, 2, 5, 7, 8, 9}.

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Complete question:

how many even integers are there between 200 and 700 whose digits are all different and come from the set (1, 2, 5, 7, 8, 9}.

You pick a card at random without putting the 1st card back you pick a second card at random what is the probability of picking an even number and then picking an even number

You pick a card at random without putting the 1st card back you pick a second card at random what is

Answers

We will have the following:

First, we can see that the probability of picking an even number at first is:

\(P_1=\frac{3}{6}\Rightarrow P_1=\frac{1}{2}\)

And then, the probability of picking another even card without replacing the previous one will be:

\(P_2=\frac{2}{5}\)

Now, the probability of this happening one after the other will be:

\(\begin{gathered} P_3=P_1P_2\Rightarrow P_3=\frac{1}{2}\ast\frac{2}{5} \\ \\ \Rightarrow P_3=0.2 \end{gathered}\)

So, the probability will be of 20%.

a pollster wishes to estimate the number of left-handed scientists. how large a sample is needed in order to be 95% confident that the sample proportion will not differ from the true proportion by more than 4%? a previous study indicates that the proportion of left-handed scientists is 8%.

Answers

If a pollster wishes to estimate the number of left-handed scientists. The sample that is needed in order to be 95% confident that the sample proportion will not differ from the true proportion by more than 4% is: 176.71.

How to find the sample?

Using this formula to find the sample

n =Z²π (1-π) ÷ e²

Where:

n =sample size =?

Z =  Z -score for 95% confidence level =1.960

π = Population proportion = 0.08

e = Margin of error = 0.04

Let plug in the formula

n = 1.96² × 0.08 × (1 - 0.08) ÷ 0.04²

n =  3.8416× 0.08 × 0.92 ÷ 0.0016

n = 176.71

Therefore the sample is 176.71.

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Select all of the following that are quadratic functions.
x=3y²-6y+5
y+3=-2x2+5
y=2x2−8x+6
y=-7x-4
y-3x=4x³-x² +9
y = 5 x(x +9)-8
y-2x²=3x-2x²+4
DONE

Answers

The quadratic functions are given as below:-

x = 3y² - 6y + 5

y = 2x² + 2

y = 2x² -8x + 6

y = 5x² + 45x -8

What is a quadratic equation?

The polynomial having a degree of two or the maximum power of the variable in a polynomial will be 2 is defined as the quadratic equation and it will cut two intercepts on the graph at the x-axis.

As we know that the function which will have the highest power of the variable equal to 2 will be called a quadratic polynomial.

So from the given expressions following equations has a degree of 2.

x = 3y² - 6y + 5

y = 2x² + 2

y = 2x² -8x + 6

y = 5x² + 45x -8

Therefore the above equations are quadratic functions.

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What is function and not function?

Answers

Answer: A function is a relation between domain and range such that each value in the domain corresponds to only one value in the range. Relations that are not functions violate this definition. They feature at least one value in the domain that corresponds to two or more values in the range.

Step-by-step explanation:

Determine the indicated roots of the given complex number. When it is possible, write the roots in the form a + bi, where a and b are real numbers and do not involve the use of a trigonometric function. Otherwise, leave the roots in polar form. The two sqrt of 4v3 - 4i:
x0 = ...
x1 = ...

Answers

The two square roots of the complex number 4√3 - 4i are:

x₀ = ±√2 cis(-π/12)

x₁ = ±√2 cis(5π/12)

The square roots of the complex number 4√3 - 4i, we can write it in polar form and use the properties of complex numbers.

First, let's convert 4√3 - 4i to polar form. We have:

r = √(4² + (-4)²)

= √(16 + 16)

= √32

= 4√2

θ = arctan(-4/4√3)

= arctan(-1/√3)

= -π/6 (since arctan(-1/√3) is in the fourth quadrant)

So, the polar form of the complex number is 4√2 cis(-π/6).

To find the square roots, we can use the square root property in polar form:

√z = ±(√r) cis(θ/2)

Let's calculate the square roots:

x₀ = ±(√(4√2)) cis((-π/6)/2) = ±(√(2√2)) cis(-π/12) = ±(√2) cis(-π/12)

x₁ = ±(√(4√2)) cis((π - π/6)/2) = ±(√(2√2)) cis(5π/12) = ±(√2) cis(5π/12)

Therefore, the two square roots of the complex number 4√3 - 4i are:

x₀ = ±√2 cis(-π/12)

x₁ = ±√2 cis(5π/12)

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Comparing two algorithms.

Say we have two different algorithms with respective runtimes of f(n) and g(n). Given the following cases, prove whether or not f(n) = ϴ(g(n)) is true in each case. Show your work but with the crucial steps only. P.S. sqrt(n) means the square-root of n, aka n^(½).

Case

f(n)

g(n)

A

log(n^200)

log(n^2)

B

sqrt(n)

log(n)

C

3^n

5^n

D

sin(n)+3

cos(n)+1

Answers

f(n) = ϴ(g(n)) is not true in cases B(sqrt(n)log(n), C(\(3^n 5^n\)), and D(sin(n)+3 cos(n)+1).

A) \(log(n^200) log(n^2)\)

Here, f(n) = \(log(n^200)\) and g(n) = \(log(n^2)\). Now, if we take the limit of f(n) / g(n) as n approaches infinity, then:

f(n) / g(n) = \([log(n^200) / log(n^2)]\) = 100

This means that as n approaches infinity, the ratio f(n) / g(n) is constant, and so we can say that f(n) = ϴ(g(n)). Therefore, f(n) = ϴ(g(n)) is true in this case.

B) sqrt(n) log(n) Here, f(n) = sqrt(n) and g(n) = log(n). Now, if we take the limit of f(n) / g(n) as n approaches infinity, then:

f(n) / g(n) = [sqrt(n) / log(n)]

As log(n) grows much slower than sqrt(n) as n approaches infinity, this limit approaches infinity. Therefore, we cannot say that f(n) = ϴ(g(n)) is true in this case.

C) 3^n 5^n

Here, f(n) = \(3^n\) and g(n) = \(5^n\) . Now, if we take the limit of f(n) / g(n) as n approaches infinity, then:

f(n) / g(n) = \([3^n / 5^n]\)

As \(3^n\) grows much slower than \(5^n\) as n approaches infinity, this limit approaches zero. Therefore, we cannot say that f(n) = ϴ(g(n)) is true in this case.

D) sin(n) + 3 cos(n) + 1

Here, f(n) = sin(n) + 3 and g(n) = cos(n) + 1. Now, if we take the limit of f(n) / g(n) as n approaches infinity, then:

f(n) / g(n) = [sin(n) + 3] / [cos(n) + 1]

As this limit oscillates between positive and negative infinity as n approaches infinity, we cannot say that f(n) = ϴ(g(n)) is true in this case.

Therefore, f(n) = ϴ(g(n)) is not true in cases B, C, and D.

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Which is the equation of an ellipse with directrices at y = ±2 and foci at (0, 1) and (0, −1)?

x squared over 4 plus y squared over 1 equals 1
x squared over 1 plus y squared over 2 equals 1
x squared over 1 minus y squared over 4 equals 1
x squared over 1 minus y squared over 2 equals 1

Answers

The answer will be x squared over 4 plus y squared over 8 equals 1.

What is an ellipse?

An ellipse is an oval shape geometry having two focuses and the curve is equidistant from the focus.

The general equation of the ellipse is given as;

(x²/a²) + (y²/b²) = 1

The coordinates of a foci are: (±c, 0) where;

c² = b² - a²

However, we know that equation of directrix is; x = ±a/e

Now, Directrix is given ±4

Thus, a/e = 4

a = 4e

We also know that c = ae from ellipse foci coordinates.

Thus, ae = 2

since ae = 2, then (4e)e = 2

4e² = 2

e² = 2/4

e = 1/2

Thus;

a = 4 × 1/2

a = 2

Since c² = b² - a²;

2² = b² - 2²

4 = b² - 4

b² = 8

From (x²/a²) + (y²/b²) = 1, we can put our values to get;

x²/4 + y²/8 = 1

Hence the answer will be x squared over 4 plus y squared over 8 equals 1.

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Bath and 1 yard of ribbon. She is 1/2 yard for project. She wants to divide the rest of the ribbon into pieces 1/4 yards long. How many 1/4 pieces of ribbon can she make

Answers

Answer:

2

Step-by-step explanation:

Given:

Total length of ribbon = 1 yard

Length of ribbon used for project = \(\frac{1}{2}\) yard

Length of ribbon the rest of ribbon is to be divided = \(\frac{1}{4}\) yard

To find:

The number of ribbons of length \(\frac{1}{4}\) yard that can be made = ?

Solution:

Length of ribbon left after the 1 yard ribbon is used for project can be calculated by subtracting the length of ribbon used from the initial length of ribbon.

i.e.

Length of ribbon left = \(1-\frac{1}{2} =\frac{1}{2}\) yard

Now, number of ribbon of length \(\frac{1}{4}\) yard can be found be dividing the length of ribbon left with the length of ribbon pieces to be cut.

i.e.

Number of ribbons:

\(\dfrac{\frac{1}{2}}{\frac{1}{4}}\\\Rightarrow \dfrac{1}{2}\times 4 = 2\)

square root of 8 savvas realize

Answers

Answer:

square root of 8 is approximately 2.828

A man drove 17 m directly cast from his home made a le turn at an intersection, and then traveled 8 minorth to his place of work of a road was made directly from his home to his place of work
what would its distance be to the nearest tenth of a mile

Answers

17-8=9

if he drives cast from his home and made a me turn at an intersection the answer is 17m east 8minorth

Pick one of the wheel's number of rotations and the answer the following THREE questions: 1. 1. Compare the original rotations _______ vs new rotations _________. 2. Explain: Did the number of tire rotations increase or decrease? Why? 3. How different tire sizes would change your answer

Answers

The number of tire rotations depends on the distance traveled by the wheel and the circumference of the tire. Different tire sizes would change the circumference of the tire, and therefore the number of rotations of the wheel

1. Compare the original rotations _______ vs new rotations _________.

Without knowing the original and new rotations, answer cannot be provided

2.The number of tire rotations depends on the distance traveled by the wheel and the circumference of the tire. If the wheel traveled a greater distance, the number of rotations would increase, and if it traveled a shorter distance, the number of rotations would decrease. Similarly, if the tire's circumference increased, the number of rotations would decrease, and if the circumference decreased, the number of rotations would increase.

3. Different tire sizes would change the circumference of the tire, and therefore the number of rotations of the wheel. A larger tire size would result in fewer rotations for the same distance traveled, while a smaller tire size would result in more rotations for the same distance traveled. Therefore, when changing tire sizes, it's important to consider the effect on speedometer readings and potential changes in vehicle handling

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help pls im dont know it

help pls im dont know it

Answers

Answer and Step-by-step explanation:

Area of triangle:

A = \(\frac{bh}{2}\) (Base times height, all divided by 2)

Area of Rectangle/Square

A = bh (base times height)

Triangle:

\(\frac{7*24}{2} = \frac{168}{2} = 84\)

Rectangle:

A = 12.5 * 13 = 162.5

162.5 + 84 = 246.5

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