Find the measure of angle A

Answer:

Girl, js search it

Step-by-step explanation:

It's literally 87.5 girly. You got this!

Answer:

87.5% or 88%.

Step-by-step explanation:

On a calculator, type in 7 divided by 8, and you'll get 0.875. Or, 87.5%, rounded is 88%

Brainliest please! I am so close to my next rank! Thanks!

\(x = 2\) \(or\) \(can\)

\(x - 2 = 0\\6 * 2 = 12\\+6 = 18\\+10 = 28\\\)

Simplifying by its least common divisor...

\(Simplify\\28 / 4 = 7\)

Therefore, the answer is 7. May vary if you assign different values to x.

The Type B trees produces 120 pears.

A percentage is a number or ratio expressed as a fraction of 100 in mathematics. The percent sign, "%," is commonly used, but the abbreviations "pct.", "pct," and sometimes "pc" are also used. A percentage is a number with no dimensions; it has no unit of measurement.

Let us consider, Type B produced 100% pears.

So, Type A will produce 120%of B, that is 144

144 = 120/100 \(*\) B

simplifying the above equation, we get

144 \(*\) 100 = 120B

B = 14400/120

B = 120

The value of B = 120.

Hence, the Type B trees produces 120 pears

Therefore, the correct answer is option B) 120.

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The area of the figure can be obtained by splitting the figure into smaller components

The area of the irregular figure = Area of A + Area of B + Area of C

Area of A = L X B = 12 x 7 = 84 sq meters

Area of B = L X B = 5 X 8 = 40 sq meters

Area of C = L X B = 5 x 8 = 40 sq meters

Total area = 84 + 40 + 40 = 164 sq meters

Answer:

wheres the graph

Step-by-step explanation:

Answer:

we need a graph to answer

Step-by-step explanation:

The smaller number is 25, and the larger number is 68. The larger number is 18 more than twice the smaller number, and their sum is 93.

To solve this word problem using the 3-step process, we need to find the two numbers given that the larger number is 18 more than twice the smaller and the sum of the two numbers is 93.
Step 1: Let's assign variables to the unknown numbers. Let's say the smaller number is "x" and the larger number is "y".
Step 2: Translate the given information into equations. From the problem, we know that the larger number is 18 more than twice the smaller. So, we can write the equation as: y = 2x + 18.
We also know that the sum of the two numbers is 93. So, we can write another equation as: x + y = 93.
Step 3: Solve the system of equations. We have two equations:
y = 2x + 18
x + y = 93
We can solve this system of equations by substitution method or elimination method. Let's use substitution.
Substitute the value of y from the first equation into the second equation:
x + (2x + 18) = 93
3x + 18 = 93
3x = 93 - 18
3x = 75
x = 75 / 3
x = 25
Now, substitute the value of x back into the first equation to find y:
y = 2(25) + 18
y = 50 + 18
y = 68
So, the smaller number is 25 and the larger number is 68.

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Answer:

  2, 3, 5 are true statements

Step-by-step explanation:

A diagram of the geometry is helpful. Our understanding of your description is shown in the first attachment. The second attachment shows how the various angles relate to each other. An exterior angle and its adjacent interior angle are a linear pair, so are supplementary.

__

1. BEC is an exterior angle -- False, it is an interior angle

2. DEC is an exterior angle -- True

3. ABE and EBC are supplementary -- True, they are a linear pair

4. BCF and DEC are supplementary -- False, they are unrelated exterior angles

5. BEC is a remote interior angle to BCF -- True

Answer:

Step-by-step explanation:

2,3,5

The probability that a package of 5 tasks is processed in less than 8 minutes is 0.963.

Let X denote the time required to process a package of five tasks. X is an exponentially distributed random variable with mean 2 minutes.

The probability of X being less than 8 minutes is given by:

P(X ≤ 8) = 1 - P(X > 8)

= \(1 - (1 - e^{(-8/2)}^{5}\)

= 0.963

Therefore, the probability that a package of 5 tasks is processed in less than 8 minutes is 0.963.

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The ratio of false positives to true positives is 8 over 54.

According to the Question

Results of a strep throat test performed on a sample of 400 ill people are displayed in the table's data. People who have the flu and those who don't are separated into two categories. The patients are then separated into groups based on whether they tested positive or negative for strep throat within each of these categories.

We must first define what a true positive and a false positive are in order to calculate the ratio of false positives to true positives. A patient who tests positive for strep throat but does not actually have the illness is said to have a false positive. The 8% of patients in this instance who tested positive for strep throat but did not have the flu would fall under that category. A patient who tests positive for strep throat and truly has the illness is said to have a true positive. That would be the 54% of patients who tested positive for both the flu and strep throat in this instance.

We divide the percentage of false positives (8%) by the percentage of true positives (54%), which gives us the ratio of false positives to true positives.

As a result, the ratio becomes 8% / 54%, or 8/54.

It's critical to remember that this ratio is dependent on the sample and test performed and may not be the same for different populations or testing methodologies.

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Answer:

Step-by-step explanation: What you want to do is find the grid point of each for example D is -4,-4 than you want to add those like B is 8,-6 so you would do -4+-8 and -4+-6 so you get 2,-10 for the distance of DB

Answer:

Step-by-step explanation:

The given points (6,4), (12,6), and (16,-6) do not form the vertices of a right triangle.

To determine if the given points form a right triangle, we can calculate the distances between the points and check if the squares of the distances satisfy the Pythagorean theorem. Let's calculate the distances between the points:

Distance between (6,4) and (12,6):

d₁ = √((12-6)² + (6-4)²) = √(36 + 4) = √40 ≈ 6.32

Distance between (12,6) and (16,-6):

d₂ = √((16-12)² + (-6-6)²) = √(16 + 144) = √160 ≈ 12.65

Distance between (16,-6) and (6,4):

d₃ = √((6-16)² + (4-(-6))²) = √((-10)² + (4+6)²) = √(100 + 100) = √200 ≈ 14.14

According to the Pythagorean theorem, if the points form a right triangle, then one of the distances squared should be equal to the sum of the squares of the other two distances. However, in this case, d₁² + d₂² ≠ d₃², d₁² + d₃² ≠ d₂², and d₂² + d₃² ≠ d₁². Therefore, the given points (6,4), (12,6), and (16,-6) do not form the vertices of a right triangle.

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The chance that a hypothesis test will incorrectly reject the null hypothesis when the p-value cutoff is 1%. The correct option is A.

A hypothesis test is used to test the validity of a hypothesis by calculating the probability that a sample statistic occurred by chance.

The null hypothesis is the hypothesis that is being tested, and it is usually assumed to be true unless there is evidence to the contrary.

The p-value is the probability of obtaining a sample statistic at least as extreme as the one observed, assuming the null hypothesis is true. If the p-value is less than the significance level, which is the p-value cutoff chosen by the researcher, then the null hypothesis is rejected.

If the p-value is greater than or equal to the significance level, then the null hypothesis is not rejected. The p-value cutoff is the significance level chosen by the researcher, and it represents the maximum probability of rejecting the null hypothesis when it is actually true.

In this case, the p-value cutoff is 1%, which means that the maximum probability of rejecting the null hypothesis when it is actually true is 1%. Therefore, the chance that a hypothesis test will incorrectly reject the null hypothesis when the p-value cutoff is 1%.

Therefore, the correct option is A.

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Answer:

w=7  5/8

l = 29.875

Step-by-step explanation:

We have to use system of equations here

Let l be length and w be width

l = 3w+7

w=l(1/3)-7

We can use the equation:

l+w+l+w = 75

2l+2w = 75

Now we substitute l for what we said above

2(3w+7)+2w=75

6w+14+2w=75

Combine like terms

8w+14=75

Subtract 14 on both sides

8w=61

w=7  5/8

We can use what we know about the relationship of the width and the length to find the length

7  5/8 * 3 + 7 = 29.875

l = 29.875

Answer:

m=-30

Step-by-step explanation:

Answer:

C. 25 years

Step-by-step explanation:

From my understanding you were asking to;

Double Allan's age, which is three, so double of his age would be six

Subtract Allan's age, three, from George's age, seven, and you would get four

Add George's age, seven, to Juan's age, eight, and get fifteen

Then you asked to add all the results together which would be;

6 + 4 + 15

That would equal 25 and since we were measuring years it would be 25 years, not just 25.

Answer:

a

Step-by-step explanation:

3x-12 = 2x-6-x

3x-12 = x-6

3x-x = -6+12

2x = 6

x = 3

To find the population at any given term n, continue to apply the recursive rule.
Pₙ = Pₙ₋₁ + 50
Using this recursive rule and the initial population, you can find the population at any given term n.

We are given a population growth model with a recursive rule and an initial population. Let's break down the information and find the population at any given term n.

Recursive rule: Pₙ = Pₙ₋₁ + 50
Initial population: P₀ = 30

Now let's find the population at any term n, using the recursive rule:

Step 1: Determine the base case, which is the initial population.
P₀ = 30

Step 2: Apply the recursive rule to find the next few terms.
P₁ = P₀ + 50 = 30 + 50 = 80
P₂ = P₁ + 50 = 80 + 50 = 130
P₃ = P₂ + 50 = 130 + 50 = 180

Step 3: To find the population at any given term n, continue to apply the recursive rule.
Pₙ = Pₙ₋₁ + 50

Using this recursive rule and the initial population, you can find the population at any given term n.

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Answer:

It seems right to me maybe sign change?

Answer: r=6

Step-by-step explanation:

-8(4-r) =16

-32 +8r =16

8r = 16+32

8r =48

r= 48/8

r=6

Stefan spend price $110 and made price $60 by selling bicycle and helmet to Jin.

A percentage is a number or ratio that can be expressed as a fraction of 100.

Here, given that,

Selling price of bicycle = $146

Selling price of helmet = $19

Total = 146+19= $165

Let,

x represents the original cost Stefan to buy the bike and helmet.

150% of x = $165

1.5x=$165

Dividing both sides by 1.5

we get ,

x=$110

Stefan bought bicycle and helmet for $110.

Profit made by Stefan = Selling price - buying price

Profit made by Stefan = 165-110= 55

Hence, Stefan spend price $110 and,  made $55 by selling bicycle and helmet to Jin.

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The required measure of length of the box is 2.9 inches. Option A is correct.

Volume is defined as the mass of the object per unit density while for geometry it is calculated as profile area multiplied by the length at which that profile is extruded.

Here,
according to the question,
h = 3l - 2.5
w = 3/4l
The volume of the box,
40 = l × w × h
40  = l × 3/4l × [3l-2.5]
40 = 3/4l²[3l - 2.5]
40 = 9/4l³ - 7.5/4l²

9/4l³ - 7.5/4l² - 40 = 0
t = 2.91932
t ≈ 2.9 inches

Thus, the length of the box must be at least 2.9 inches. Option A is the right answer.

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Answer: B and C

Step-by-step explanation:

Answer:

A, B, and C

Step-by-step explanation:

If Figure M is a scaled copy of Figure N, the shape will stay the same, the angles will stay the same, and the edges will stay the same. The only thing that will change is the perimeters and area.

If the atmospheric pressure of 5 is measured in millibars, it would correspond to a pressure of 0.5 kPa or a pressure of approximately 1.47 inHg. However, this value should be considered as a rough estimate and would still be subject to the variability of atmospheric conditions.

It is not possible to accurately determine the altitude at which atmospheric pressure reaches 5 without additional information about the context and conditions of the atmosphere being considered. The atmospheric pressure at a given altitude can vary widely depending on factors such as temperature, humidity, and atmospheric composition.

However, in general, atmospheric pressure decreases with increasing altitude. At sea level, the standard atmospheric pressure is about 101.3 kilopascals (kPa). At an altitude of approximately 5.6 kilometers, the atmospheric pressure drops to around 50 kPa. However, this value can vary greatly depending on the conditions of the atmosphere being considered.

It is worth noting that atmospheric pressure is typically measured in units of kilopascals (kPa), millibars (mb), or inches of mercury (inHg). The conversion between these units is as follows:

1 kPa = 10 mb = 0.2953 inHg

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Your question seems incomplete. I could not find the exact question details online so I answered in general.

Some Algorithms are faster than others, and so scientists and corporations spend a lot of money and time trying to find the best one for a particular problem.

Algorithms are step-by-step procedures or sets of rules for solving a specific problem or accomplishing a particular task. In the context of the given statement, algorithms are compared based on their speed or efficiency in solving problems. Scientists and corporations invest resources to research and develop algorithms that can provide optimal solutions for various problems. The search for the best algorithm involves analyzing their performance, considering factors such as execution time, accuracy, scalability, and resource utilization

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The probability that fewer than 60 out of a random sample of 500 adults will work from home is 0.03

In the given probability case we have;

What is the likelihood that, out of a random sample of 500 persons, fewer than 60 will work from home if 15% of adults in a particular country do so?

Let,

P = 15% = 0.15

n = 500

By considering the binomial distribution case the formula is given by

P( X = x ) = ⁿCₓ * Pˣ * (1 - P)ⁿ⁻ˣ

P( X ≤ 60 ) = ⁿCₓ * Pˣ * (1 - P)ⁿ⁻ˣ

                 = ⁶⁰∑ₓ=₀ (⁵⁰⁰Cₓ) (0.15)ˣ (1 - 0.15)⁵⁰⁰⁻ˣ

                 = 0.031

                 ≅ 0.03

Hence, the probability that fewer than 60 out of a random sample of 500 adults will work from home is 0.03

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The estimator hat mu1 is unbiased and efficient, while hat mu2 is biased and less efficient.

In the first step, let's examine the bias of the estimators. To determine whether an estimator is unbiased, we compare its expected value to the true parameter value. For hat mu1, we have:

E(hat mu1) = E((n - 1)/n * hat Y)

Since the expected value is a linear operator, we can rewrite this as:

E(hat mu1) = (n - 1)/n * E(hat Y)

Now, since each Y_i is drawn from a normal distribution with mean mu, we have E(hat Y) = mu. Substituting this in, we get:

E(hat mu1) = (n - 1)/n * mu

This shows that hat mu1 is an unbiased estimator, as its expected value is equal to the true parameter mu. On the other hand, for hat mu2, we have:

E(hat mu2) = E(hat Y + 2/n)

Again, using linearity of expectation, we can split this into two terms:

E(hat mu2) = E(hat Y) + E(2/n)

Since E(hat Y) = mu, we can simplify further:

E(hat mu2) = mu + 2/n

This indicates that hat mu2 is biased, as its expected value is mu + 2/n, which is different from the true parameter mu.

Moving on to efficiency, we compare the variances of the estimators. The efficiency of an estimator is determined by its variance, with a more efficient estimator having a smaller variance. For hat mu1, the variance is:

Var(hat mu1) = Var((n - 1)/n * hat Y)

Since the observations are independent and identically distributed (iid) from a normal distribution, we can use the properties of variance to simplify this expression:

Var(hat mu1) = \(((n - 1)/n)^2 * Var(hat Y) = ((n - 1)/n)^2 * (sigma^2/n)\)

On the other hand, for hat mu2, the variance is:

Var(hat mu2) = Var(hat Y + 2/n)

Again, using the properties of variance, we get:

Var(hat mu2) = Var(hat Y) + Var(2/n) = Var(hat Y) + 0 = Var(hat Y)

Comparing the two variances, we find that Var(hat mu1) < Var(hat mu2), indicating that hat mu1 is more efficient than hat mu2.

In summary, hat mu1 is an unbiased and efficient estimator, while hat mu2 is biased and less efficient.

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(a) The expected value for purchases made when people spent 0-10 minutes on the website is 1,050.

(b) The test statistic needs to be calculated to determine independence.

(c) The p-value is required to make a conclusion about the independence of the variables.

(a) The expected value for the purchases made when people spent 0-10 minutes on the website can be calculated by multiplying the row total (1,500) and the column total for purchases made (7,000), and then dividing it by the grand total (10,000).

Expected value = (1,500 * 7,000) / 10,000 = 1,050

(b) To calculate the test statistic, we need to compare the observed frequencies with the expected frequencies. We can use the formula:

Test statistic = Σ((Observed frequency - Expected frequency)^2 / Expected frequency)

By calculating the test statistic using the formula for all the cells in the table and summing the results, we can find the test statistic.

(c) Once the test statistic is calculated, we can find the p-value associated with it using a chi-square distribution table or statistical software. The p-value represents the probability of obtaining a test statistic as extreme as the observed one, assuming the variables are independent.

Based on a significance level of 5%, we compare the p-value to 0.05. If the p-value is less than 0.05, we reject the null hypothesis (H0) and conclude that the variables are not independent.

In this case, the question does not provide the test statistic or the p-value, so it is not possible to determine the correct conclusion without these values.

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Answer:

A

Step-by-step explanation:

Plug the values into the equation

Option A is the correct answer.

If you look at the x and y values in table D, you’ll see that the change in y values is +2, while the change in x values is +1. Thus, the slope is 2/1 or 2.

Another way to look at it is by solving for the slope:

Using coordinates: (3, 5) (4 ,7):

Let x1 = 3

x2 = 4

y1 = 5

y2 = 7

\(m = \frac{(y_{2} - y_{1}) }{(x_{2} - x_{1}) }\)

\(m = \frac{7 - 5}{4 - 3} = \frac{2}{1} = 2\)

Therefore, the slope (m) = 2.

For the y-intercept, (b): it is the value of y when x = 0.

Let x = 0:

y = mx + b

y = 2(0) -1

y = -1

Therefore, the y-intercept is -1, which is also included in the given equation.

The symbol to make the following statement true is 3 lb > 32 oz.

In mathematics, an inequality is a relation which makes a non-equal comparison between two numbers or other mathematical expressions.

In other words, Inequalities are mathematical expressions involving the symbols >, <, ≥ and ≤.

Therefore, let's choose the symbol that represents the statement.

Firstly, we will convert the units.

1 pounds = 16 ounce

3 pounds = 48 ounces.

Hence,

48 ounces is greater than 32 ounces.

Therefore, the correct symbol for the statement is   3 pounds > 32 ounces.

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