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garik1379 [7]
3 years ago
15

Calculate the perimeter show your work

Mathematics
1 answer:
Lena [83]3 years ago
4 0

Answer:

1600

Step-by-step explanation:

P=LxWxH

so P=20x10x8=1600

(i think)

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Write the function in vertex form. y=-x^2-8x-9
xeze [42]

Answer:

y = -(x+4)² +7

Step-by-step explanation:

I find it convenient to factor the leading minus sign from the first two terms, then work with what's left.

... y = -(x² +8x) -9

Now, add the square of half the x-coefficient inside parentheses. Add the opposite of that amount outside parentheses.

... y = -(x² +8x +4²) -9 +4²

... y = -(x +4)² +7 . . . . . . . . . rewrite parentheses as a square; collect terms

4 0
3 years ago
According to the US Bureau of Labor Statistics publication News, self-employed persons with home-based businesses work a mean of
worty [1.4K]

Answer:

The answer is below

Step-by-step explanation:

Given that mean (μ) = 23 hours, standard deviation (σ) = 10 hours

a) The population is a group of self employed home based workers while the variable is the number of hours worked per week.

b) The mean of the distribution of sample means (also known as the Expected value of M) is equal to the population mean μ.

\mu_x=\mu=23\ hours

The standard deviation of the distribution of sample means is called the Standard Error of M, it is given by:

\sigma_x=\sigma/\sqrt{n} =\frac{10}{\sqrt{100} }=1

c) \mu_x=\mu=23\ hours

\sigma_x=\sigma/\sqrt{n} =\frac{10}{\sqrt{1000} }=0.32

d) The sample size has no effect on the mean, hence increasing the sample size does not change the mean.

The square root of sample size is inversely proportional to the standard deviation therefore increasing the sample size reduces the standard deviation.

5 0
3 years ago
Could someone please explain to me how to solve this problem? Thanks! :)
BartSMP [9]

Answer:

First of all since they are dividing subtract the powers of the base from each other .

Make sure the bases are the same.

((6^7-6)(3^3-4))³

((6)(3^-1))³

(6³)(3^-3)

216 × 1/27

= 8

That's option d.

Hope this helps.

6 0
3 years ago
(3 1/2) (-1 5/7) <br><br><br><br> PLEASE HELP!! SOMEONE PLEASEEEE!!
katen-ka-za [31]

Answer:

-6

Step-by-step explanation:

Use a calculator

8 0
3 years ago
Read 2 more answers
Use the simple interest formula to find the unknown quantity. I = prt I = $9 p = $450 r = 4% t =
Andreyy89

Answer:

1/2

just did this on edgenuity:)

4 0
2 years ago
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