A crew of highway workers paved 1/2 mile in 1/4 hour. If they work at the same rate, how much will they pave in one hour?
A. 3/4 mile
B. 1 1/4 miles
C. 1 3/4 miles
D. 2 miless

Based on the given information, it is not possible to determine the p-value, decision to reject (rh0) or failure to reject (frh0) without additional data or context.

To assess whether the relaxation exercise slowed brain waves, a statistical analysis should be conducted on a sample from the population.

The analysis would involve measuring brain waves before and after the exercise and comparing the results using appropriate statistical tests such as a t-test or ANOVA. The p-value would indicate the probability of observing the data if there was no effect, and the decision to reject or fail to reject the null hypothesis would depend on the predetermined significance level.

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Answer:

0.125

Step-by-step explanation:

hope this helps :).

Answer

the.answer is 0.125

In hypothesis testing, the tentative assumption about the population parameter is either the null hypothesis or the alternative hypothesis. The null hypothesis (denoted as H₀) represents the statement that there is no significant difference or effect between the variables being studied, while the alternative hypothesis (denoted as H₁) asserts that there is a significant difference or effect.

Hypothesis testing involves comparing observed data against these hypotheses to determine which one is more likely to be true. Researchers aim to either reject or fail to reject the null hypothesis, based on the evidence provided by the data. If the null hypothesis is rejected, it suggests that the alternative hypothesis is more likely to be true.

To make this decision, a significance level (usually denoted as α) is chosen to quantify the risk of making a Type I error, which is rejecting the null hypothesis when it is actually true. Common significance levels are 0.05 or 0.01. If the probability of observing the data (or more extreme) under the null hypothesis, called the p-value, is less than the chosen significance level, the null hypothesis is rejected in favor of the alternative hypothesis.

In summary, hypothesis testing involves evaluating the tentative assumptions about the population parameter using the null and alternative hypotheses to draw conclusions based on the observed data.

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Step-by-step explanation:

the volume of :

cone = ⅓π.r².r= ⅓π.r³

cylinder = π.r²r= π.r³

Sphere = 4/3 π.r³

for r = 9 in =>

the volume of:

14. cone = ⅓.π.9³= ⅓π × 729 = 243π in³

15. cylinder = π.9³ = 729π in³

16. Sphere = 4/3 π.9³ = 972π in³

17. the volume ratio among cone, cylinder and Sphere is : ⅓ : 1 : 4/3 =

1 : 3 : 4

Step-by-step explanation:

p(R)=18/48 is the probability of the question

Answer:

\(y=-\frac{1}{9}(x-2)^2-3\)

Step-by-step explanation:

When a quadratic equation is in the form \(y=a(x-h)^2+k\) (vertex form):

Therefore, if the vertex of the function is at (2,-3), h needs to be 2 for \((x-h)^2\)  to equal 0 and k needs to be -3. The only equation that displays this is G:

\(y=-\frac{1}{9}(x-2)^2-3\)

I hope this helps!

Answer:

1

Step-by-step explanation:

A linear equation (degree 1) will have one root. A quadratic equation (degree 2) will have two roots. A cubic equation (degree 3) will have three roots. An nth degree polynomial equation will have n roots.

Answer:

A quadratic equation with real coefficients can have either one or two distinct real roots, or two distinct complex roots. In this case the discriminant determines the number and nature of the roots. There are three cases: If the discriminant is positive, then there are two distinct roots.

Step-by-step explanation:

A degree 2 polynomial (a quadratic) has 2 roots. A linear equation in the form y = mx + b is degree 1, since this is and has one root. A linear equation in the form y = c is degree 0, since this is and has zero roots.

PLZ PLZ MARK ME AS BRAINLIST!!

Answer:

17

1234

4567

56783

56743

Answer:

y equals 3x plus 4 is the answer

Step-by-step explanation:

hope it helps

Answer:

yes

Step-by-step explanation:

Answer:

yes

Step-by-step explanation:

The greater a decimal is, the closer it is to one whole. The smaller a decimal is the farther it is from one whole. The first thing you need to look at is the digit number in each decimal. These each have two digits in them, so you can compare them right away.

Answer: $100.70

Step-by-step explanation: 6% is equal to 0.06, so you can add multiply the price of the item by 1.06 because that is the base cost plus the tax. Then you get $100.70.

Answer:

100.70

Step-by-step explanation:

95.00*6%

95.00*.06=5.70

95.00+5.70=100.70

Based on the given information, the tank will be empty after 10 hours of continuous drainage at a rate of 2 gallons per hour.

The tank initially contains 20 gallons of water, and it drains at a constant rate of 2 gallons per hour. To find out how long it takes for the tank to be empty, we can divide the initial amount of water by the drainage rate:

Time = Initial amount of water / Drainage rate

Time = 20 gallons / 2 gallons per hour

Time = 10 hours

Based on the given information, the tank will be empty after 10 hours of continuous drainage at a rate of 2 gallons per hour. This means that every hour, 2 gallons of water will be drained from the tank until it is completely empty.

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Answer:

A i think

Step-by-step explanation:

Robert, Juan, Susan, and Linda scored above the mean, Joel scored on the mean, and Jan scored below the mean on the advanced first aid course's final exam based on their z-score. Their final exam scores were 172, 184, 190, 150, 166, and 182, respectively.

The students with positive z-scores scored above the mean. So, Robert, Juan, Susan, and Linda scored above the mean. The student with a z-score of 0.00 scored on the mean. So, Joel scored on the mean. The student with a negative z-score scored below the mean. So, Jan scored below the mean.

To find the final exam score for each student, we can use the formula:

z = (x - m) / s

where z is the z-score, x is the final exam score, m is the mean score, and s is the standard deviation.

Rearranging the formula, we get:

x = z * s + m

Using the given values of z, s, and m, we can find the final exam score for each student:

Robert: x = 1.10 * 20 + 150 = 172

Juan: x = 1.70 * 20 + 150 = 184

Susan: x = 2.00 * 20 + 150 = 190

Joel: x = 0.00 * 20 + 150 = 150

Jan: x = 0.80 * 20 + 150 = 166

Linda: x = 1.60 * 20 + 150 = 182

So, the final exam scores for Robert, Juan, Susan, Joel, Jan, and Linda are 172, 184, 190, 150, 166, and 182, respectively.

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Answer:

18% decrease

Step-by-step explanation:

-Subtract the ending value from the starting value.

40.00 - 32.80 = 7.20

-Divide this number by the starting value.

7.20 / 40.00 = 0.18

-Multiply by 100 to find the percentage change

0.18 * 100 = 18% decrease

Answer:

For 25) it's option C. -1/2

For 26) it's option D. 7π/6, 11π/6

Step-by-step explanation:

If you are finding sin−1 of a positive value, the answer will be between 0 and π/2. Using the unit circle, the angle with a sine of 1/2 in the first quadrant is π/6.

Answer:

-1/2

7π/6, 11π/6

Step-by-step explanation:

First problem:

31π/6 = 31/6 π = 5 1/6 π

A full circle is 2π radians. π radians = 180°

Start at 0 radians (positive x axis), and go 5 half circles counterclockwise.

You end up at π radians, or 180°, or the negative x axis.

Now go π/6 radians more counterclockwise.

You end up at 7π/6 or 210°.

Read the y-coordinate of the point on the unit circle.

Answer: -1/2

Second problem:

Look in the figure of the first problem.

The sine corresponds to the y-coordinate.

Look at the points on the circle, below the x-axis, that have a y-coordinate of -1/2.

They correspond to 7π/6 and 11π/6

Answer:

the answer is a

Step-by-step explanation:

A good conclusion goes back to the thesis and may answer a big question presented in the essay. It may also have a call to action or strong bold statement to close out the essay.

Answer:d

Step-by-step explanation:

The answer is d beacause if you think about it it is right the whole type just sounds like it and if you dont believe me than look it up you knight find somet

Answer:

8/18?

Step-by-step explanation:

Answer:

x=-3.75

Step-by-step explanation:

17 = -13-8x

30=-8x

x=-3.75

Answer:

Step-by-step explanation:

17=-13-8x

Step 1: add 13 to both sides

30=-8x

Step 2: divide by -8

-3.75=x

Answer:

0

Step-by-step explanation:

Given

Formula

Solving

Slope:-

\(\\ \rm\dashrightarrow m=\dfrac{-8+8}{-4-2}\)

\(\\ \rm\dashrightarrow m=\dfrac{0}{-6}\)

\(\\ \rm\dashrightarrow m=0\)

The value of y is 10. The measure m∠ C and m∠ D are 40° and 76° respectively.

What is external angle?

The angle created when a transversal cuts one of two lines and is located outside of the line. It describes the angle between a side of a polygon and an expanded adjacent side.

The measure of an external angle of a triangle is equal to the sum of opposite interior angles.

∠DEF is an exterior angle. The opposite interior angles of ∠DEF are m∠ C and m∠ D

Therefore,

m∠ C + m∠ D = ∠DEF

4y° + (7y + 6)° = 116°

Add like terms

11y + 6 = 116

Subtract 6 from both sides:

11y = 110

Divide both sides by 11:

y = 10

Putting y = 10 in  m∠ C = 4y° and m∠ D =  (7y + 6)°

m∠ C = 40°

m∠ D = 76°

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Therefore, the value of n that makes the system of equations true is n = 10.

Given:

p = 2n

p - 5 = 1.5n

Substituting the value of p from the first equation into the second equation, we have:

2n - 5 = 1.5n

Next, we can solve for n by subtracting 1.5n from both sides of the equation:

2n - 1.5n - 5 = 0.5n - 5

Simplifying further:

0.5n - 5 = 0

Adding 5 to both sides of the equation:

0.5n = 5

Dividing both sides by 0.5:

n = 10

Therefore, the value of n that makes the system of equations true is n = 10.

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To determine the bank's annual interest rate, we need the information from the ad.

However, you did not provide any specific details or mention the ad in your question. Please provide the necessary information from the ad, and I'll be happy to assist you in finding the bank's annual interest rate.

I apologize, but without the specific information or context from the ad you mentioned, I cannot determine the bank's annual interest rate. To determine the annual interest rate, you would typically need to refer to the details provided in the ad, such as the percentage or specific terms mentioned regarding interest rates.

If you can provide more information or the relevant details from the ad, I would be happy to assist you further in determining the bank's annual interest rate.

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When Fourier transform of x(t) is X(ω), X(0) is equal to d) 3.

To find X(ω), the Fourier transform of x(t), we can use the properties of the Fourier transform. The Fourier transform of a shifted impulse function δ(t - a) is \(e^{-jwa\), and the Fourier transform of a constant multiplied by a function is equal to the constant multiplied by the Fourier transform of the function.

Using these properties, we can calculate X(ω) as follows:

X(ω) = 2\(e^{-jw0.5\) + \(e^{-jw(-1.5)\)

Simplifying further, we have:

X(ω) = 2\(e^{-jw0.5\) + \(e^{-jw(-1.5)\)

Now, to find X(0), we substitute ω = 0 into the equation:

X(0) = 2\(e^{-j00.5\) + \(e^{j01.5\)

Simplifying, we get:

X(0) = 2\(e^0\) + \(e^0\)

Since \(e^0\) is equal to 1, the equation becomes:

X(0) = 2*1 + 1

X(0) = 2 + 1

X(0) = 3

Therefore, X(0) is equal to 3. So the correct option is (d) 3.

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(a) The probability of zero arrivals during the next minute is approximately 0.2231. (b) The probability of z service times less than or equal to a given value can be calculated using the exponential distribution formula.

(a) The probability of zero arrivals during the next minute can be calculated using the Poisson distribution with a rate of 1.5 per minute. Plugging in the rate λ = 1.5 and the number of arrivals k = 0 into the Poisson probability formula, we get P(X = 0) = e^(-λ) * (λ^k) / k! = e^(-1.5) * (1.5^0) / 0! = e^(-1.5) ≈ 0.2231.

(b) In the second part of the problem, the employee serves each customer in 1 minute on average, and the service times follow an exponential distribution. The probability of z service times less than or equal to a given value can be calculated using the exponential distribution. We can use the formula P(X ≤ z) = 1 - e^(-λz), where λ is the rate parameter of the exponential distribution. In this case, since the average service time is 1 minute, λ = 1. Plugging in z into the formula, we can calculate the desired probability.

Note: Since the specific value of z is not provided in the problem, we cannot provide an exact probability without knowing the value of z.

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The likely factor that impacts the discrepancy in the prevalence of depression between Japan and the United States is sociocultural factors,

Here,

Sociocultural factors refer to the social and cultural influences that shape the behavior and experiences of individuals within a society. Japan and the United States have different social and cultural contexts, which can contribute to differences in mental health outcomes such as depression.

In Japan, there are certain sociocultural factors that may play a role in the lower prevalence of depression. These factors include a strong emphasis on collectivism, social support networks, close-knit communities, and cultural practices such as mindfulness and meditation.

Additionally, Japan has a more collective-oriented culture that places value on harmony and conformity, which may help reduce stress and contribute to better mental health outcomes.

On the other hand, the United States has a different sociocultural context characterized by individualism, higher levels of stress, and a focus on personal achievement. These factors can contribute to higher rates of depression in the United States.

It is important to note that while sociocultural factors are likely to play a significant role, other factors such as genetic differences, rates of stress, and self-esteem can also contribute to the prevalence of depression, but they may not be the primary reasons for the discrepancy mentioned in the question.

Thus option A is correct,

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Complete question:

Whereas the prevalence of depression in Japan is only 3 percent, in the United States the prevalence is almost six times that, at 17 percent. Which of the following factors likely impacts this discrepancy?

a. sociocultural factors

b. genetic differences

c. lower rates of stress in Japan

d. higher self-esteem among people in Japan

I remember doing this but I don’t seem to remember sorry