2 years ago

Find the surface area of the prism. 8ft, 15ft, 17ft,20ft

Mathematics

1 answer:

morpeh [17]2 years ago

7 0

Answer: 1200

Step-by-step explanation:

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The area.

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2 years ago

A jet's engine takes in 20 kilograms of air per second. The air is compressed, heated, and

Vladimir79 [104]

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anwser -10000 n

Step-by-step explanation:

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2 years ago

Determine the value of B such that the line defined by 8x + By + 92 = 0 passes through the point (-4,12).

zvonat [6]

8x + By + 92 = 0

(-4; 12) ⇒ x = -4; y = 12

subtitute

8 · (-4) + 12B + 92 = 0
-32 + 12B + 92 = 0
12B + 60 = 0 |subtract 60 from both sides
12B = -60 |divide both sides by 12

B = -5

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2 years ago

HELP!!

Lorico [155]

C. Jasmine bought some tiles to put around her patio. . .

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3 years ago

A study has indicated that the sample size necessary to estimate the average electricity use by residential customers of a large

Zanzabum

Answer:

$\sigma=547.1125$

Step-by-step explanation:

-The margin of error is calculated using the formula:

$ME=z_{\alpha/2}\times \frac{\sigma}{\sqrt{n}}\\\\$

-We substitute the values, n=900 and ME=30 in the formula to solve for standard deviation:

$ME=z_{\alpha/2}\times \frac{\sigma}{\sqrt{n}}\\\\\\30=1.645\times\frac{\sigma}{\sqrt{900}}\\\\\sigma=\frac{30^2}{1.645}\\\\=547.1125$

Hence, the population standard deviation is 547.1125

7 0

3 years ago