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2 years ago

6

Six friends will exchange books in their book club. Each friend has one book to give to a friend, and will receive one book from

a different friend. (No two friends trade books with each other.) In how many ways can the books be exchanged

1 answer:

ExtremeBDS [4]2 years ago

8 0

I believe I have came in my pants

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08.02 mc the function

wariber [46]

Step-by-step explanation:

Question 2(Multiple Choice Worth 1 points)

(08.02 MC)

The function f(t) = 4t2 − 8t + 7 shows the height from the ground f(t), in meters, of a roller coaster car at different times t. Write f(t) in the vertex form a(x − h)2 + k, where a, h, and k are integers, and interpret the vertex of f(t).

f(t) = 4(t − 1)2 + 3; the minimum height of the roller coaster is 3 meters from the ground

f(t) = 4(t − 1)2 + 3; the minimum height of the roller coaster is 1 meter from the ground

f(t) = 4(t − 1)2 + 2; the minimum height of the roller coaster is 2 meters from the ground

f(t) = 4(t − 1)2 + 2; the minimum height of the roller coaster is 1 meter from the ground

<h3>whatever but please mark ma as BRAINLIEST answer please its a requests </h3>

6 0

2 years ago

Which one can you not conclude as being true

Nuetrik [128]

First option :)
This is because they do not line up with eachother

3 0

3 years ago

Read 2 more answers

g The average midterm score of students in a certain course is 70 points. From the past experience it is known that the midterm

spayn [35]

Answer:

0.98 = 98% probability that the average midterm score of these students is at most 75 points.

Step-by-step explanation:

To solve this question, we need to understand the normal probability distribution and the central limit theorem.

Normal Probability Distribution:

Problems of normal distributions can be solved using the z-score formula.

In a set with mean $\mu$ and standard deviation $\sigma$ , the z-score of a measure X is given by:

$Z = \frac{X - \mu}{\sigma}$

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the p-value, we get the probability that the value of the measure is greater than X.

Central Limit Theorem

The Central Limit Theorem estabilishes that, for a normally distributed random variable X, with mean $\mu$ and standard deviation $\sigma$ , the sampling distribution of the sample means with size n can be approximated to a normal distribution with mean $\mu$ and standard deviation $s = \frac{\sigma}{\sqrt{n}}$ .

For a skewed variable, the Central Limit Theorem can also be applied, as long as n is at least 30.

The average midterm score of students in a certain course is 70 points.

This means that $\mu = 70$

29 students are randomly selected and the standard deviation of their scores is found to be 13.15 points.

This means that $\sigma = 13.15, n = 29, s = \frac{13.15}{\sqrt{29}} = 2.44$

Find the probability that the average midterm score of these students is at most 75 points.

This is the pvalue of Z when X = 75. So

$Z = \frac{X - \mu}{\sigma}$

By the Central Limit Theorem

$Z = \frac{X - \mu}{s}$

$Z = \frac{75 - 70}{2.44}$

$Z = 2.05$

$Z = 2.05$ has a pvalue of 0.98.

0.98 = 98% probability that the average midterm score of these students is at most 75 points.

8 0

3 years ago

The assets division should contain what accounts

fredd [130]

98610100Using your completed Chart of Accounts, choose the one correct answer.1. The assets division should contain what accounts?A. 11 P.Woodsley, Capital12 Equipment—Store13 Equipment—Office14 Cash15 Accounts Payable—Taylor InvestmentsB. 11 Accounts Payable—Bellhaven Bank12 Equipment—Store13 Equipment—Office14 P.Woodsley, Capital15 CashC. 11 Cash12 Equipment—Store13 Equipment—Office14 Prepaid Insurance15 Accounts Payable—Taylor InvestmentsD. 11 Cash12 Prepaid Insurance13 Equipment—Store14 Equipment—Office15 Supplies2. The liabilities division should contain what accounts?A. 21 Accounts Payable—Bellhaven Bank22 P.Woodsley—CapitalB. 21 Accounts Payable—Bellhaven Bank22 Accounts Payable—Taylor InvestmentsC. 2122D. 21 Accounts Payable—Bellhaven Bank22 Merchant’s Bank3. The owner’s equity division should contain what account(s)?A. 31 P.Woodsley—Capital

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3 years ago

Simply the equation 3m + ( m + 5 )

Elena L [17]

Answer:

4m+5

Step-by-step explanation:

7 0

3 years ago

Read 2 more answers