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2 years ago

Basic math for 20 points + brainliest!

Mathematics

1 answer:

kkurt [141]2 years ago

4 0

Answer:

Look at photo

Step-by-step explanation:

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Can someone PLEASE help me with this question, I've been having trouble for half a hour. Thank you!

ioda

The answer is D 6,804 square inches
the surface area of one net is 1,056
you multiply it by the number of packages and you get 6,804

5 0

2 years ago

Read 2 more answers

5.3.73 Question Help

Tatiana [17]

Area of the triangle is 20x(x - 1) sq. in

Step-by-step explanation:

Step 1: Find the area of the triangle.

Height = 10x in and Base = 4(x - 1) in

Area = 1/2 × base × height

⇒ Area = 1/2 × 4(x - 1) × 10x

= 20x(x - 1) sq. in

6 0

3 years ago

A customer at the produce section of a food store bought cucumbers and heads of lettuce . The quantity she purchased of the head

kkurt [141]

He bought 3 cucumbers because 3*5=15, 15-6=9, 9*.7=6.3, .3*3=.9, .9+6.3=7.2

4 0

2 years ago

4)In order to set rates, an insurance company is trying to estimate the number of sick daysthat full time workers at an auto rep

bagirrra123 [75]

Answer:

A sample of 18 is required.

Step-by-step explanation:

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

$\alpha = \frac{1 - 0.92}{2} = 0.04$

Now, we have to find z in the Z-table as such z has a p-value of $1 - \alpha$ .

That is z with a pvalue of $1 - 0.04 = 0.96$ , so Z = 1.88.

Now, find the margin of error M as such

$M = z\frac{\sigma}{\sqrt{n}}$

In which $\sigma$ is the standard deviation of the population and n is the size of the sample.

A previous study indicated that the standard deviation was 2.2 days.

This means that $\sigma = 2.2$

How large a sample must be selected if the company wants to be 92% confident that the true mean differs from the sample mean by no more than 1 day?

This is n for which M = 1. So

$M = z\frac{\sigma}{\sqrt{n}}$

$1 = 1.88\frac{2.2}{\sqrt{n}}$

$\sqrt{n} = 1.88*2.2$

$(\sqrt{n})^2 = (1.88*2.2)^2$

$n = 17.1$

Rounding up:

A sample of 18 is required.

3 0

2 years ago

Need help please , Find FE if TE=8

elena55 [62]

I believe the answer is 16

3 0

3 years ago