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Svetach [21]
3 years ago
6

CAN SOMEONE HELP ME WITH THIS??????????????

Mathematics
2 answers:
Novay_Z [31]3 years ago
8 0

Answer:

a ) 5 Feets

b ) slope = 1/5

Step-by-step explanation:

a ) Solved by method of Unitary

b ) Concept of slope from graph

=  \frac{change \: in \: y \: coordinate}{change \: in \: x \: coordinate}  \\  \\ change \: in \: y \: coordinate \:   = y \: finale \:  - yinitiale

[ Refer to the attached file ]

RoseWind [281]3 years ago
3 0

Answer:

1. 5

2. 1/5

Step-by-step explanation:

Slope is change in y over change in x. Select any two points and find the ratio, and you'll always get 1/5.

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Answer:

C. ± 2.326 years.

Step-by-step explanation:

We have the standard deviation for the sample. So we use the t-distribution to solve this question.

We have that to find our \alpha level, that is the subtraction of 1 by the confidence interval divided by 2. So:

\alpha = \frac{1-0.98}{2} = 0.01

Now, we have to find z in the Ztable as such z has a pvalue of 1-\alpha.

So it is z with a pvalue of 1-0.01 = 0.99, so z = 2.326/tex]Now, find the width of the interval[tex]W = z*\frac{\sigma}{\sqrt{n}}

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So

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The correct answer is:

C. ± 2.326 years.

7 0
3 years ago
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Answer:

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Step-by-step explanation:

Hope this helped out.

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Answer:

I'm 99% sure the answer is A

Step-by-step explanation:

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