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Taya2010 [7]
2 years ago
12

Can anyone help me with my homework?

Mathematics
1 answer:
marta [7]2 years ago
7 0
2)

-2, -12

-9, -54

-6, -36

6, 36

-4, -24
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Mickey works in a square shaped office. The area of his office is 110.25 ft2. What is the length of one side of Mickey’s office?
krek1111 [17]

Answer: A formula that can be used to find the answer is (x Squared = 110.25) So (x times x = 110.25) 10.5 is the length of one side because 10.5 squared = 110.25.

Answer is 10.5


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3 years ago
For a statistics class project, a college student randomly samples 75 men who exercise at a gym regularly and 68 women who exerc
raketka [301]

Answer:

iii. The data do not provide sufficient evidence to conclude that the mean number of minutes exercised per week is larger for men than for women at this gym

Step-by-step explanation:

1) The hypotheses are

H0: u1 ≤ u2 against the claim Ha: u1 > u2

The men spend less or equal time than the women  at the gym each week

vs

the men  spend greater time  than the women at the gym each week

2) The test statistic is

t= (x1`- x2`) / √ s1²/n1+ s2²/n2

t= 65.7- 64.8/√(13.9)²/75 + (9.6)²/68

t= 0.9/√2.57613 +1.35529

t=0.4539

and the degrees of freedom is

3) υ = [s₁²/n1 + s₂²/n2]²/ (s₁²/n1 )²/ n1-1 + (s₂²/n2)²/n2-1

=[(13.9)²/75 + (9.6)²/68]²/ [(13.9)²/75 ]² /74 + [ (9.6)²/68]²/67

= 139

The degrees of freedom is always rounded in this calculation

4) The Critical region is [1.656, ∞]

5) t-score is outside of the critical region, so there is not enough evidence to reject H₀.

iii. The data do not provide sufficient evidence to conclude that the mean number of minutes exercised per week is larger for men than for women at this gym

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Step-by-step explanation:

I just took the quiz.

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Answer:

R4491

Step-by-step explanation:

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3 years ago
Which statement is true? A dilation is not a function because a point on the pre-image could be mapped to more than one point on
lianna [129]

Here the answer is

D) A dilation is a function because every point on the pre-image corresponds to exactly one point on the image.

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Thank you

6 0
3 years ago
Read 2 more answers
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