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3 years ago

Please someone help with this!!

Mathematics

1 answer:

Radda [10]3 years ago

7 0

i really hope this helps!

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A clothing store is having a sale on graphing T-shirts and plain T-shirts. There are 56 graphic T-shirts on sale. The store mana

Butoxors [25]

Answer:

Step-by-step explanation:

80 shirts on sale, some basic divisoin/ multiplication.

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3 years ago

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What is the area of a parallelogram with a height of 6 feet and a base of 10.5 feet?

natta225 [31]

Answer:

$area = base \times height \\ = 10.5 \times 6 \\ = 63 \: {ft}^{2}$

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3 years ago

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A random sample of 8 recent college graduates found that starting salaries for architects in New York City had a mean of $42,653

ycow [4]

Answer:

C. (36337.32, 48968.68)

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:

$\alpha = \frac{1-0.95}{2} = 0.025$

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 $1-0.025 = 0.975$ , so $z = 1.96$

Now, find 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.

$M = 1.96*\frac{9114}{\sqrt{8}} = 6315.68$

The lower end of the interval is the sample mean subtracted by M. So it is 42653 - 6315.68 = 36337.32.

The upper end of the interval is the sample mean added to M. So it is 42653 + 6315.68 = 48968.68.

So the correct answer is:

C. (36337.32, 48968.68)

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3 years ago

Can anyone help me as soon as possible??

Bogdan [553]

Answer:

x = 16

Step-by-step explanation:

Δ AED and Δ ACB are similar thus the ratios of corresponding sides are equal, that is

$\frac{ED}{CB}$ = $\frac{AD}{AB}$ , substitute values

$\frac{11}{8}$ = $\frac{6+x}{x}$ ( cross- multiply )

11x = 8(6 + x) ← distribute

11x = 48 + 8x ( subtract 8x from both sides )

3x = 48 ( divide both sides by 3 )

x = 16

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3 years ago

Learn with an example Find the perimeter. Simplify your answer. y-6 y-5 y-5 y-6

koban [17]

Answer:

P = 22

Step-by-step explanation:

P= l(2) + w(2)

5(2) + 6(2)

10 + `12

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3 years ago