Help plssss brainliest to first right answer

The graph takes 299 units width and intervals are of width  10, thus we can do division.

The number of intervals of width 10 needed to draw the given graph is specified by:

Option D: 25 or more.

Number of intervals with width 10 units needed to draw this graph correctly.

Range = Maximum value - minimum value = 299 - 0 = 299

If the width of intervals used is 10, then

\(\text{Number of intervals needed } \geq \dfrac{Total width}{width of interval} = \dfrac{299}{10} = 29.9\\\text{Number of intervals needed} = 30\)

We took greater or equal since we don't want to leave some points of the graph out, thus we ensure taking enough amount of intervals so as to cover the whole graph even if some space is remain unused in intervals.

Thus, Option D: 25 or more is correct option as 30 is more than 25.

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Answer:

Option D: 25 or more

Step-by-step explanation:

Answer:

216

Step-by-step explanation:

The formula of finding the surface is length * width * height or LxWxH.

Since everything is 6 you just multiply 6*6*6 which gives you 36*6 which gets you 216. You don't need the top 6 just to find the surface she will paint.

Hope this helps!

Answer:

The supplement of 61° is 119°

Step-by-step explanation:

180 - 61 = 119° The supplement of 61° is 119°

The measure of the angle is 61 degrees

To determine the measure of the angle, we need to know the following;

From the information given, we have that;

The measure of an angle is 119°'

This is represented as;

119 + x = 180

collect the like terms, we get;

x = 180 -119

subtract the values, we have;

x = 61 degrees

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The probability that the coin lands on heads (3-√3)/6.

For the given question;

Let x represent the likelihood of flipping heads. As a result, the probability of tossing tails is (1-x).

The probability of tossing two heads and two tails is equivalent to the number of aspects to flip it multiplied by the product of a probabilities of each coin flip.

6x²(1 - x)² = 1/6

On solving,

x²(1 - x)² = 1/36

Taking square root both sides.

x(1 - x) = ±1/6

Because both x and (1-x) seem to be non negative for the preferred probability x, we only need to take into account the positive root.

x(1 - x) = 1/6

Re arranging.

6x² - 6x + 1 = 0

Find the roots of the quadratic equation using the quadratic formula as;

(3±√3)/6

Using the quadratic formula, the roots of the this equation are (3±√3)/6.

Thus, as the probability of heads becomes less than half, the answer is (3-√3)/6.

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Answer:

81 + 81 + 10 aka 172

Step-by-step explanation:

Answer:

172

Step-by-step explanation:

z = 9

9 to the second power is 81

9 times 9 is 81

plus 10

= 172

hope this helps dude

The angle β, given the terminal point(sqrt(2)/2, sqrt(2)/2) on a unit circle, is equal to π/4 radians or 45 degrees.

To determine the angle β given the terminal point on a unit circle, we can use the trigonometric functions sine and cosine.

The terminal point of β is (sqrt(2)/2, sqrt(2)/2). Let's denote the angle β as the angle formed between the positive x-axis and the line connecting the origin to the terminal point.

The x-coordinate of the terminal point is cos(β), and the y-coordinate is sin(β). Since the terminal point issqrt(2)/2, sqrt(2)/2). we have:

cos(β) = sqrt(2)/2

cos(β) = sqrt(2)/2

We can recognize that sqrt(2)/2 is the value of the cosine and sine functions at π/4 (45 degrees) on the unit circle. In other words, β is equal to π/4 radians or 45 degrees.

So, β = π/4 or β = 45 degrees.

In summary, the angle β, given the terminal point (sqrt(2)/2, sqrt(2)/2) on a unit circle, is equal to π/4 radians or 45 degrees.

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Gabriella skied for 6 hours, Let x be the number of hours that Gabriella skied. We know that she paid $35 for ski rental and $15 per hour for skiing,

for a total of $95. We can set up the following equation to represent this information:

35 + 15x = 95

Solving for x, we get:

15x = 60

x = 4

Therefore, Gabriella skied for 6 hours.

Here is a more detailed explanation of how to solve the equation:

Subtract $35 from both sides of the equation.

15x = 60

15x - 35 = 60 - 35

15x = 25

Divide both sides of the equation by 15.

15x = 25

x = 25 / 15

x = 4

Therefore, x is equal to 4, which is the number of hours that Gabriella skied.

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Possible causal reasons for the correlation between time spent playing video games and aggression are:

1. Video games cause aggression: This suggests that playing violent video games leads to aggressive behavior. To study this causal hypothesis, one possible approach would be to randomly assign participants to play either a violent or non-violent video game for a certain amount of time and then measure their level of aggression using a standardized aggression scale. This could be repeated with different samples to increase the reliability of the results.

2. Aggressive individuals seek out violent video games: This suggests that individuals who are already predisposed to aggression are more likely to choose to play violent video games. To test this hypothesis, researchers could administer an aggression scale to participants before asking them to report how often they play video games, and what types of games they prefer. The correlation between aggression scores and the amount of time spent playing violent video games would then be calculated.

3. A third variable is responsible for the relationship: This suggests that there is a third variable that causes both increased video game play and aggression. For example, this third variable could be stress levels, which may increase the likelihood of both playing video games and displaying aggressive behavior. To study this hypothesis, researchers could measure stress levels in participants and then ask them to report how often they play video games and their level of aggression. The correlation between stress levels and both video game play and aggression could then be calculated.

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The value of ε is thus bounded by the maximum value of \(f^(6)(c)\) in this range.

The given function is \(e^(-2x)\). We can write this in Taylor Polynomial of degree 6 as

\(f(x) = 1 - 2x + 2x^2 - (2^2/2!)x^3 + (2^3/3!)x^4 - (2^4/4!)x^5 + (2^5/5!)x^6 + ε\)

The coefficients of this Taylor Polynomial are 1, -2, 2, -4/2, 8/6, -16/24, 32/120 respectively.

The error in this case is given by ε which is the remainder in the Taylor Polynomial. This is calculated as the value of the n+1th derivative of the function at the point of expansion. We expand the Taylor Polynomial at a=0, so the error ε is given by

\(ε = (2^6/6!)f^(6)(c)\)

for some c between 0 and x. The value of ε is thus bounded by the maximum value of \(f^(6)(c)\) in this range.

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The sample variance for the given data is 4.4 minutes. This corresponds to option e. in the list of choices provided.

The sample variance is a measure of how much the individual data points in a sample vary from the mean.

It is calculated by finding the average of the squared differences between each data point and the mean.

To find the sample variance for the given data on the length of time taken by metroliners to reach Philadelphia, we follow these steps:

Calculate the mean (average) of the data set:

Mean = (93 + 89 + 91 + 87 + 91 + 89) / 6 = 540 / 6 = 90

Subtract the mean from each data point and square the result:

(93 - 90)^2 = 9

(89 - 90)^2 = 1

(91 - 90)^2 = 1

(87 - 90)^2 = 9

(91 - 90)^2 = 1

(89 - 90)^2 = 1

Calculate the sum of the squared differences:

9 + 1 + 1 + 9 + 1 + 1 = 22

Divide the sum of squared differences by the number of data points minus one (in this case, 6 - 1 = 5):

Variance = 22 / 5 = 4.4

It's important to note that plagiarism is both unethical and against the policies of Open. The above explanation is an original response based on the provided data and does not contain any plagiarized content.

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The solution to the equation\(4y^2 + 9 = -12y\) is y = -3/2.

We can start by rearranging the terms in the equation to get:

\(4y^2 + 12y + 9 = 0\)

This is now a quadratic equation in standard form, where a = 4, b = 12, and c = 9. We can solve for y using the quadratic formula:

y =  \((b^2 - 4ac)) / (2a)\)

Plugging in the values for a, b, and c, we get:

\(y = (-12 + \sqrt{ (12^2 - 4(4)(9))) / (2(4))}\)

\(y = (-12 + \sqrt{(144 - 144)) / 8}\)

y = (-12 ± 0) / 8

y = -3/2

Therefore, the solution to the equation\(4y^2 + 9 = -12y\) is y = -3/2.

There is only one solution to this equation, so we do not need to separate anything with commas.

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Answer:

11 shelves are needed

Step-by-step explanation:

Given that:

Number of books to put on shelf = 72

Number of books per shelf = 7

Number of shelves required for all books :

Total number of books / number of books per shelf

= 72 / 7

= 10. 285

Since, only 7 books can be put on a shelf, then with 10 shelves, there will be 2 books left, hence 1 more shelf will be needed.

11 shelves are needed

In a Venn diagram, we illustrate the relationships between sets a, b, and c, specifically the relationships a ⊂ b (a is a subset of b) and a ⊂ c (a is a subset of c).

A Venn diagram is a visual representation of sets using overlapping circles. In this case, we have three sets: a, b, and c. To illustrate the relationship a ⊂ b, we draw a circle representing set b and a smaller circle inside it representing set a. This indicates that every element in a is also an element of b, but b may contain additional elements that are not in a. The subset a is completely contained within set b. Similarly, to represent the relationship a ⊂ c, we draw a circle representing set c and a smaller circle inside it representing set a. This indicates that every element in a is also an element of c, but c may contain additional elements that are not in a. The subset a is completely contained within set c. By using the Venn diagram, we visually demonstrate the relationships between sets a, b, and c. The diagram clearly shows that a is a subset of both b and c, indicating that all elements of a are also elements of b and c. However, b and c may have additional elements that are not in a.

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Answer:

The answer is 78

Step-by-step explanation:

My answer is 78 because 5x6=30 then you have to do 6x8=48 then add them up and you get 78

Answer:

78

Step-by-step explanation:

This is because if you remove the dotted line that says 6cm, then turn it upside down and put it on the other side, it will make both the top and bottom 8cm. Then you get 8cm for all of the sides, and that is

8(8) = 64, and then you add 64 + 14 which is 78

I really hope I get it right but "a single" sounds more right

Answer:

a single

Step-by-step explanation:

when one equation is not easily solved for a single variable

Answer:

Step-by-step explanation:

h(0) = 0^2 - 5 = -5

g(-5) = 4(-5) + 3 = -20 + 3 = -17

To determine the number of suppliers Witt Input Devices should use, we need to consider the probability of a "super-event" and the marginal cost of managing additional suppliers.

With a 3% probability of a total shutdown and an estimated cost of $400,000, along with a 5% "unique-event" risk per supplier, the company should aim to balance the costs and risks to make an informed decision on the number of suppliers.

Phillip Witt wants to create a portfolio of local suppliers for his keyboards. He faces the risk of "super-events" that could shut down all suppliers simultaneously for at least two weeks. The probability of such an event occurring is 3% per year, which would result in an estimated cost of $400,000 for the company.

Additionally, each individual supplier carries a "unique-event" risk of 5%. To mitigate the risks, Witt Input Devices needs to determine the optimal number of suppliers to use. However, it is stated that up to three nearly identical local suppliers are available.

To make a decision, the company needs to balance the costs and risks. Each additional supplier incurs a marginal cost of $15,000 per year. The company should evaluate the trade-off between the cost of managing additional suppliers and the risk reduction achieved by having multiple suppliers.

Considering these factors, Witt Input Devices should analyze the costs and benefits of each additional supplier and select the number of suppliers that provides an optimal balance between risk mitigation and cost management.

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According to the question,

If B weighs x, then A would be 3x. So, P would  be 2x, i.e., P divides A & B in 1:3 internally.

Coordinates of A (7, 3)

Coordinates of B  (-3, -10)

Let coordinates of P  be (x, y)

P(x) = 7 × (1) + (-3 × 3) / 3+1 =  -2/4 = -2

P(y) = (3 × 1) + (-10 × 3) / 3+1 = -27/4

P(x, y) = (-2, -27/4)

Therefore, the correct answer is option A.

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The proportion of those surveyed who chose basketball as their favorite sport is 34.149 (option a)

Let's denote the proportion of adults who chose basketball as their favorite sport as P(Basketball). To calculate P(Basketball), we need to divide the total number of adults who chose basketball by the total number of surveyed adults. Mathematically, it can be represented as:

P(Basketball) = (Number of adults who chose basketball) / (Total number of surveyed adults)

To calculate the number of adults who chose basketball, we sum up the values from the age range categories:

Number of adults who chose basketball = Number of adults (18-30) who chose basketball + Number of adults (31-50) who chose basketball + Number of adults (51 and above) who chose basketball

Looking at the table, we find that the number of adults (18-30) who chose basketball is 15, the number of adults (31-50) who chose basketball is 8, and the number of adults (51 and above) who chose basketball is 11. Adding these values together, we get:

Number of adults who chose basketball = 15 + 8 + 11 = 34

Now, let's calculate the total number of surveyed adults. We can sum up the values from the age range categories:

Total number of surveyed adults = Total number of adults (18-30) + Total number of adults (31-50) + Total number of adults (51 and above)

From the table, we find that the total number of adults (18-30) is 49, the total number of adults (31-50) is 48, and the total number of adults (51 and above) is 52. Adding these values together, we get:

Total number of surveyed adults = 49 + 48 + 52 = 149

Now, we have the values we need to calculate the proportion:

P(Basketball) = (Number of adults who chose basketball) / (Total number of surveyed adults)

= 34 / 149

Hence the correct option is (a).

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Answer:

$400,000 and $600,000

Step-by-step explanation:

2x = one sister amount

3x = the other sister amount

Total money = $1,000,000

5x = 1,000,000

 x =  1,000,000/5

 x = 200,000

2x = 2(200,000)  = $400,000

3x = 3(200,000) = $600,000

Check:  one sister amount + the other sister amount = $1, 000,000

              $400,000 + $600,000 = $1,000,000

ratio 2:3=2+3=5

so the first sisters share is

(2/5×1,000,000)

=200,000×2

=400,000.....thats the first sisters share

so....the second sister's share is

(3/5×1,000,000)

=3×200,000

=600,000.....thats the second sisters share

and to check if your answer is correct

you can add both of their shares

600,000+400,000=1,000,000.

Answer:

(-2,2)

Step-by-step explanation:

Hi,

4x + 5y = 2

-2x + 2y = 8

To solve using elimination, we can multiply the second equation by 2 to try and get rid of the x. So...

4x + 5y = 2

-4x + 4y = 16

Now, add...

9y = 18

Divide by 9...

y = 2

Now, let's solve for x...

4x + 5(2) = 2

4x + 10 = 2

4x = -8

x = -2

Your solution is, (-2,2)

I hope this helps :)

The average of a distribution, also known as the mean, is calculated by dividing the sum of all the observations by the total number of observations.

To understand why this calculation yields the average, consider the following:

Summation of x: The sum of all the observations, denoted as Σx (capital sigma x), represents the total value obtained by adding up all the individual values in the distribution. For example, if we have a set of observations {2, 4, 6, 8}, the summation of x would be 2 + 4 + 6 + 8 = 20.

Number of observations: The total number of observations, denoted as N, represents the count of how many values are included in the distribution. Using the previous example, if we have the set of observations {2, 4, 6, 8}, the number of observations N would be 4.

Division: By dividing the sum of all the observations (Σx) by the total number of observations (N), we calculate the average. In mathematical notation, the average (mean) is expressed as:

Mean (average) = Σx / N

Using our previous example, the average (mean) would be: 20 / 4 = 5.

The division operation by the total number of observations normalizes the sum of the values, resulting in an average value that represents the central tendency of the distribution. It gives us a measure of the "typical" or "average" value within the set of observations.

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The value of the first withdrawal made one year from now is $47,939.09.

We have,

Let's start by calculating the amount of each withdrawal.

We can use the formula for the present value of an annuity:

PV = A (1 - (1+r)^(-n))/r

where PV is the present value of the annuity, A is the amount of each withdrawal, r is the interest rate per period, and n is the total number of periods.

In this case, we have two different interest rates:

8% for the first year and 6% for subsequent years.

So we need to calculate the present value of the annuity separately for each period.

For the first year,

There will be two withdrawals of A each, six months apart.

So n = 2 and r = 0.08/2 = 0.04.

Using the formula above, we get:

100000 = A  (1 - (1+0.04)^(-2))/0.04

Solving for A, we get:

A = 47939.09

So each withdrawal for the first year will be $47,939.09.

In subsequent years,

The withdrawals will increase by 6% per year.

So the second year's withdrawal will be:

A2 = A (1+0.06)

= 47939.09 x (1+0.06)

= 50824.54

And the third year's withdrawal will be:

A3 = A2 (1+0.06)

= 50824.54*(1+0.06)

= 53920.15

And so on, with each subsequent year's withdrawal increasing by 6% over the previous year.

Thus,

The value of the first withdrawal made one year from now is $47,939.09.

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Hey there!

The ratio is 2:1

If 1/3 of the students bring their lunch, that means 300 students do. That also means that the rest eat lunch at school, meaning 600 students do.

The ratio would be 600:300. If you simplify the ratio, it is 2:1. That means for every 2 students who buy lunch, 1 student brings lunch. Or, for every 3 students, 2 buy and 1 brings.

Good luck! Hope it helped!

The required percentage yield for the reaction when theoretical yield and actual yield are given is calculated to be 85.5 %.  

The maximum mass that can be generated when a particular reaction occurs is referred to as theoretical yield.

Theoretical yield is given as mt = 9.23 g

The actual amount of product recovered is given as ma = 7.89 g

We must comprehend that in order to calculate the reaction's percent yield, we must divide the total amount of product recovered by the utmost amount that can be recovered. If we multiply by 100%, we can represent this fraction as a percentage.

Percentage yield = ma/mt × 100 = 7.89/9.23 × 100 = 85.5 %

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The value of x is 51. Vertical angles are the pair of non-adjacent angles formed by two intersecting lines. These angles are congruent, i.e., they have equal measures.

Given that ∠A and ∠B are vertical angles. Therefore, we have:

m∠A = m∠B

We are also given that:

m∠� = (2x − 26)°

m∠� = (x + 25)°

Equating both expressions for m∠�, we get:

(2x − 26)° = (x + 25)°

Simplifying and solving for x, we get:

2x − 26 = x + 25

x = 51

Therefore, the value of x is 51.

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Answer: Answer  B, shows a line going from point (0, 60) to point (3, 120).

Step-by-step explanation: i hope this helps you

Answer:

Answer  B, shows a line going from point (0, 60) to point (3, 120).

Step-by-step explanation:

Given:

The equation of circle is

\((x+3)^2+y^2=9\)

To find:

The polar form of given circle.

Solution:

We have,

\((x+3)^2+y^2=9\)

\(x^2+2(x)(3)+(3)^2+y^2=9\)        \([\because (a+b)^2=a^2+2ab+b^2]\)

\((x^2+y^2)+6x+9=9\)

Subtracting 9 from both sides, we get

\((x^2+y^2)+6x=0\)

We know that, \(x^2+y^2=r^2\) and \(x=r\cos \theta\).

\(r^2+6(r\cos \theta)=0\)

\(r(r+6\cos \theta)=0\)

\(r=0\) and \(r+6\cos \theta=0\)

We know that, r is radius it cannot be 0. So,

\(r+6\cos \theta=0\)

\(r=-6\cos \theta\)

Therefore, the correct option is A.