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jarptica [38.1K]
3 years ago
8

Find the perimeter. Simplify your answer.

Mathematics
1 answer:
jekas [21]3 years ago
7 0

Answer:

The third one, 2c - 6

Step-by-step explanation:

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Identify the type I error and the type II error for a hypothesis test of the indicated claim. The percentage of adults who retir
matrenka [14]

Answer:

<u>Type I error: </u>D. Reject the null hypothesis that the percentage of adults who retire at age 65 is less than or equal to 62 % when it is actually true.

<u>Type II error: </u>A. Fail to reject the null hypothesis that the percentage of adults who retire at age 65 is less than or equal to 62 % when it is actually false.

Step-by-step explanation:

A type I error happens when a true null hypothesis is rejected.

A type II error happens when a false null hypothesis is failed to be rejected.

In this case, where the alternative hypothesis is that "the percentage of adults who retire at age 65 is greater than 62%", the null hypothesis will state that this percentage is not significantly greater than 62%.

A type I error would happen when the conclusion is that the percentage is greater than 62%, when in fact it is not.

A type II error would happen when there is no enough evidence to claim that the percentage is greater than 62%, even when the percentage is in fact greater than 62% (but we still don't have evidence to prove it).

5 0
3 years ago
A number decrease by the square of 9
ratelena [41]
X-9^2
a number = x
decreased= subtracting
square of 9= 9^2
7 0
3 years ago
Explain how to determine if Carlos’s allowance is directly proportional to the number of chores he completes.
lesya [120]

Using a proportional relationship, it is found that Carlos earns an allowance of $7.5 for each chore that he completes.

<h3>What is a proportional relationship?</h3>

A proportional relationship is a function in which the output variable is given by the input variable multiplied by a constant of proportionality, that is:

y = kx

In which k is the constant of proportionality.

In this problem, the constant is:

k = 75/10 = 97.5/13 = 112.5/15 = 7.5.

Hence Carlos earns an allowance of $7.5 for each chore that he completes.

More can be learned about proportional relationships at brainly.com/question/10424180

#SPJ1

3 0
2 years ago
A young wizard got 16 baby dragons for her birthday. Then more than half of the baby dragons
Lynna [10]
The greatest amount of baby dragons the wizard could have is 7.

half of 16 is 8 (16/2=8)
so if at least more than half of the dragons flew away then that would mean at least 9 of them flew away
16-9=7 to find the amount of dragons left
3 0
2 years ago
Read 2 more answers
3+7 and 1/2÷1 and 3/10
natali 33 [55]

Answer:

8.76923076923

Step-by-step explanation:

7 0
3 years ago
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