2 years ago

A sphere and a cylinder have the same radius and height. The volume of the cylinder is 21m3

Mathematics

2 answers:

maksim [4K]2 years ago

5 0

Answer:

14m^3

Step-by-step explanation:

Simora [160]2 years ago

4 0

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(a) An angle measures 27°. What is the measure of its complement?

larisa [96]

Answer:

a) 63°

b) 127°

Step-by-step explanation:

Complements are 90° while supplements are 180°.

So you need to find the complement of 27°. So, 90-27=63

To find the supplement, it is 180-53=127

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2 years ago

A rectangle has a length of 12 yards less than 3 times its width. If the area of the rectangle is 135 square yards, find the len

Aleonysh [2.5K]

Answer:

The length is 15 yards

Step-by-step explanation:

Given

Represent the width with W and length with L: So

$Area = 135yd^2$

$L=3W - 12$

Required

Determine the length of the rectangle:

Area is calculated as thus:

$Area = L * W$

Substitute 3W - 12 for L and 135 for Area

$135= (3W - 12) * W$

$135= 3W^2 - 12W$

Reorder:

$3W^2 - 12W - 135= 0$

Divide through by 3

$W^2 - 4W - 45 = 0$

Expand:

$W^2 - 9W + 5W - 45 = 0$

$W(W - 9) + 5(W - 9) = 0$

$(W + 5)(W-9) = 0$

$W + 5 = 0$ or $W - 9 = 0$

$W = -5$ or $W = 9$

But width can't be negative

So:

$W = 9$

Recall that: $L=3W - 12$

$L = 3 * 9 - 12$

$L = 15$

<em>Hence, the length 15 yards</em>

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2 years ago

List three exampls of a rate

Tamiku [17]

Answer:

Step-by-step explanation:

It is a special type of ratio

EXAMPLE:

12 ounce can of corn costs $.69 the rate would be $.69 for 12 ounces would be .69:12

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2 years ago

Beth has already jogged 3 miles. She plans to jog less than 12 miles. Which inequality can be used to find the number of miles (

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Answer: Bilmem

Step-by-step explanation:

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2 years ago

What is 160% of 80kg

andre [41]

Answer:

128kg

Step-by-step explanation:

I don't know how to explain it here the answer

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2 years ago

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