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3 years ago

8

Eereeeeeeeeeeeeee Eeeeee

2 answers:

grin007 [14]3 years ago

3 0

Answer:

Fourth Option is the right one

Salsk061 [2.6K]3 years ago

3 0

It’s the last one because I worked it out.

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The teacher passed out math books. The length is 10 inches and the width is 8 inches. What is the perimeter of each book?

loris [4]

Books are rectangles so that means that opposite sides are equal so if one side is 10 inches then so is the opposite side. same for the 8. the perimeter is the amount around the rectangle so you must add all sides together to find it so

10in+10in+8in+8in= 36in

8 0

3 years ago

I don’t know how to do the hole page

FrozenT [24]

#7
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8 0

3 years ago

WILL MARK BRAINLY<br><br> f(x) = 2x 2+ 6 when f (4)

Elena-2011 [213]

Answer: is there suposed to be a symbol between the 2x and the 2?

4 0

3 years ago

In order to estimate the average time spent on the computer terminals per student at a local university, data were collected fro

VladimirAG [237]

Answer:

Margin of error for a 95% of confidence intervals is 0.261

Step-by-step explanation:

<u>Step1:-</u>

Sample n = 81 business students over a one-week period.

Given the population standard deviation is 1.2 hours

Confidence level of significance = 0.95

Zₐ = 1.96

Margin of error (M.E) = $\frac{Z_{\alpha }S.D }{\sqrt{n} }$

Given n=81 , σ =1.2 and Zₐ = 1.96

<u>Step2:-</u>

<u /> $Margin of error (M.E) = \frac{Z_{\alpha }S.D }{\sqrt{n} }$ <u />

<u /> $Margin of error (M.E) = \frac{1.96(1.2) }{\sqrt{81} }$ <u />

On calculating , we get

Margin of error = 0.261

<u>Conclusion:-</u>

Margin of error for a 95% of confidence intervals is 0.261

<u />

4 0

3 years ago

Haley measured the distances between her house and two of her friends' houses. ellen's house is 1.41 miles away from haley's, an

Arada [10]

Answer: Ellen's house is farther away by 898 feet.

Step-by-step explanation:

Given: The distance between Haley's house and Ellen's house = 1.41 miles

We know that 1 mile = 5,280 feet

Then, $1.41\text{ miles}=1.41\times5,280\text{ feet}=7,444.8\text{ feet}$

The distance between Haley's house and Dirk's house = 6,547 feet

Clearly, 6,547<7,444.8

And $7444.8-6547= 897.8\approx898$

Therefore, Ellen's house is farther away by 898 feet.

3 0

3 years ago

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