2 years ago

Please help!!!!!!!!!

Mathematics

2 answers:

8090 [49]2 years ago

8 0

Answer

C and D

Step-by-step explanation:

Let me know if I am right! :D

ANEK [815]2 years ago

5 0

Answer:

The answer would be the second one

Step-by-step explanation:

Good luck!

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The rental rate for a cement mixer has a flat rate of $40 plus $20 for each day of the rental. The graph shows points representi

Fiesta28 [93]

Answer:

Step-by-step explanation:

y= 20x+40

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2 years ago

A pentagonal prism has a height of 9 feet, and each base edge is 3 feet. Find the volume. Round your answer to the nearest hundr

OLga [1]

Height of the pentagon = 9 ft

Edge of base = 3 ft

$area of pentagon = \frac{s^{2}n}{4 tan\left ( \frac{180}{n} \right )}$

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tan is the tangent function calculated in degrees

$\\ \\\\area of pentagon = \frac{3^{2}(5)}{4 tan\left ( \frac{180}{5} \right )}\\\\\\area of pentagon = \frac{9(5)}{4 tan\left ( 36 \right )}\\\\area of pentagon = \frac{45}{4 ( 0.7265 )}\\\\area of pentagon = \frac{45}{2.906}\\\\area of pentagon = 15.4852$