MATHEMATICS COLLEGE

Mort is trying to save money to get out of student debt he saves money each month from his paycheck the function below relates money saved x in thousands of dollars to mouth since graduation, y.y=3x-7
identifying the slope and intercept and describe what each mean in the context

Answers

Answer 1

Answer:

Answer:

hello your answer is 21 y=21

Step-by-step explanation:

3 times -7 is 21- hope i helped

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You are given 7 to 1 odds against rolling a sum of 6 with the roll of two fair dice, meaning you win $7 if you succeed and you lose $1 if you fail. Find the expected value (to you) of the game.
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Suppose you read online that children first count to 10 successfully when they are 32 months old, on average. You perform a hypothesis test evaluating whether the average age at which gifted children first count to 10 is different than the general average of 32 months. What is the p-value of the hypothesis test? Choose the closest answer.
Z=15+2(x+y) solve for x
Find two consecutive positive integers such that the square of the first decreased by 67 is equal to three times the second

I need the right answers pls and tysmmm

Answers

Answer:

It's 21, you are correct!!

Step-by-step explanation:

The table shows the distances and times that four people ran. Without making any calculations, who ran the fastest?

Answers

Answer:

b is the answer very sure

Step-by-step explanation:

Answer:

Betsy

Step-by-step explanation:

UwU

Simplify:
4n + 6 -(5n+3)
A. -n +3
B. -n +9
C. 9n + 3
D. 9n +9

Answers

Answer:

Answer is A.

-n+3

Step-by-step explanation:

There are 15 pieces of fruit in the fruit in a bowl and 6 of them are apples. What percentage of the pieces of the fruit in the bowl are apples0.06%

0.4

6%

40%

Answers

The answer is 0.4 because 6/15 is 2/5 which is 0.4 as a decimal

During the period of time that a local university takes phone-in registrations, calls come inat the rate of one every two minutes.
a. What is the expected number of calls in one hour?
b. What is the probability of three calls in five minutes?
c. What is the probability of no calls in a five-minute period?

Answers

Answer:

a) The expected number of calls in one hour is 30.

b) There is a 21.38% probability of three calls in five minutes.

c) There is an 8.2% probability of no calls in a five minute period.

Step-by-step explanation:

In problems that we only have the mean during a time period can be solved by the Poisson probability distribution.

Poisson probability distribution

In a Poisson distribution, the probability that X represents the number of successes of a random variable is given by the following formula:

$P(X = x) = (e^(-\mu)*\mu^(x))/((x)!)$

In which

x is the number of sucesses

e = 2.71828 is the Euler number

$\mu$ is the mean in the given interval.

a. What is the expected number of calls in one hour?

Calls come in at the rate of one each two minutes. There are 60 minutes in one hour. This means that the expected number of calls in one hour is 30.

b. What is the probability of three calls in five minutes?

Calls come in at the rate of one each two minutes. So in five minutes, 2.5 calls are expected, which means that $\mu = 2.5$ . We want to find P(X = 3).