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3 years ago

Simplify. Open the picture

Mathematics

1 answer:

Damm [24]3 years ago

3 0

Answer:

-8

Step-by-step explanation:

bit of a long problem, if you have any questions leave them below

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Step-by-step explanation:

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3 years ago

A simple random sample of 64 observations was taken from a large population. The sample mean and the standard deviation were det

iragen [17]

Answer:

The correct option is d

Step-by-step explanation:

From the question we are told that

The sample size is n = 64

The mean is $\= x = 320$

The standard deviation is $\sigma = 120$

Generally the standard error of the mean is mathematically represented as

$\sigma_x = \frac{\sigma}{ \sqrt{n} }$

=> $\sigma_x = \frac{120}{ \sqrt{64} }$

=> $\sigma_x =15$

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3 years ago

Under his cell phone plan, Owen pays a flat cost of $46 per month and $3 per gigabyte, or part of a gigabyte. (For example, if h

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Answer:

4 gigs maybe

Step-by-step explanation:

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3 years ago

The Miller family is taking a road trip. They will drive a total of 1,372 miles. So far they have driven 648 miles. How many mil

ziro4ka [17]

724 mile left in the trip!

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4 years ago

The width of a triangle of 7 feet longer than its length. Find the dimensions of the rectangle such that the perimeter of the re

AveGali [126]

Answer:

Length = 37 feets

Width = 44 feets

Step-by-step explanation:

Given that :

Length = l

Width, w = 7 + l

Perimeter , P of rectangle = 162

Recall:

Perimeter of a rectangle = 2(l + w)

P = 2(l + w)

162 = 2(l + (7 + l))

162 = 2(l + 7 + l)

162 = 2(7 + 2l)

162 = 14 + 4l

162 - 14 = 4l

148 = 4l

l = 148 / 4

l = 37 feets

Width = l + 7

Hence,

Width = 37 + 7 = 44 feets

4 0

3 years ago

Simplify. Open the picture ​

Simplify. Open the picture