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3 years ago

What is the answer to this please?

Mathematics

1 answer:

MArishka [77]3 years ago

7 0

Answer:

Step-by-step explanation:

The sides of a regular hexagon are congruent

Given that 1 side = 15in, then

perimeter = 6 × 15 = 90 in → D

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When a cylindrical tank is filled with water at a rate of 22 cubic meters per hour, the level of water in the tank rises at a ra

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Answer:

$r=\sqrt{10}\text{ m}$

Step-by-step explanation:

We have been given that when a cylindrical tank is filled with water at a rate of 22 cubic meters per hour, the level of water in the tank rises at a rate of 0.7 meters per hour. We are asked to find the approximate radius of tank in meters.

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$V=\pi r^2h$ , where,

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Since the level of water in the tank rises at a rate of 0.7 meters per hour, so height of cylinder would be $h = 0.7$ meters at $V=22\text{ m}^3$ .

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$22\text{ m}^3=\frac{22}{7}\cdot r^2(0.7\text{ m})$

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Question 21 is probably the hardest question on this homework

Snezhnost [94]

-15+5x= 20

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