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2 years ago

14

2. What is the variable in the expression: 13x3 +7 (Select one answer) 7 3 13

1 answer:

sdas [7]2 years ago

3 0

I think it would be 3

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iogann1982 [59]

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3 years ago

60% of what number is 72?

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icang [17]

Answer:

The height of the new cones will be 16.5 inches.

Step-by-step explanation:

We know that,

The volume of a cone is,

$V=\frac{1}{3}\pi r^2 h$

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h is the height of the cone,

In the original cone,

r = 22 inches,

h = 66 inches,

Thus, the volume would be,

$V_1=\frac{1}{3}\pi (22)^2(66)$

Also, for the new cone,

r = 44 inches,

Let H be the height,

So, the volume of the new cone would be,

$V_2=\frac{1}{3}\pi (44)^2(H)$

According to the question,

$V_2=V_1$

$\implies \frac{1}{3}\pi (44)^2(H)=\frac{1}{3}\pi (22)^2(66)$

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Hence, the height of the new cones will be 16.5 inches.

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