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3 years ago

12

What do heating systems cooling systems and heat engines have in common

1 answer:

Lunna [17]3 years ago

5 0

Answer:

is D

Step-by-step explanation:

for egny

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How is a 15% discount similar to a 15% decrease?<br> How is 8% sales tax like an 8% increase?

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3 years ago

Read 2 more answers

I need help asp please!!!

fiasKO [112]

Answer:

Option B, $516.3\ units$

Step-by-step explanation:

<u>Step 1: Determine the area of the back</u>

$A = l * w$

$A = 10\ units * 13\ units$

$A = 130\ units^2$

<u>Step 2: Determine the hypotenuse</u>

Pythagorean theorem → $a^2 + b^2 = c^2$

$(10-6)^2\ units + 7^2\ units = c^2$

$4^2\ units + 7^2\ units=c^2$

$16\ units+49\ units=c^2$

$\sqrt{65}=\sqrt{c^2}$

$8.06 = c$

<u>Step 3: Determine the area of the top</u>

$A = l * w$

$A = 13\ units * 8.06\ units$

$A = 104.81\ units^2$

<u>Step 4: Determine the area of the front</u>

$A = l * w$

$A = 13\ units * 6\ units$

$A = 78\ units^2$

<u>Step 5: Determine the area of the bottom</u>

$A = l * w$

$A = 13\ units * 7\ units$

$A = 91\ units^2$

<u>Step 6: Determine the area of the trapezoid</u>

$A = \frac{a + b}{2} * h$

$A = \frac{10\ units\ +\ 6\ units}{2}*7\ units$

$A = 8\ units*7\ units$

$A = 56\ units^2$

<u>Step 7: Determine the total surface area</u>

$130\ units^2 + 104.81\ units^2 + 78\ units^2 + 91\ units^2 + 2(56\ units^2)$

$515.81\ units^2$

Answer: Option B, $516.3\ units$

6 0

2 years ago