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tino4ka555 [31]
3 years ago
11

Find the diameter of a cone that has a volume of 104.67 cubic inches and a height of 4 inches. Use 3.14 for pi.

Mathematics
1 answer:
Lady bird [3.3K]3 years ago
7 0

Answer:

Step-by-step explanation:

The volume of a cone is

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

Filling in what we have:

104.67=\frac{1}{3}(3.14)r^2(4)  and simplifying a bit:

104.67=\frac{1}{3}(12.56)r^2

Multiply both sides by 3 to get:

314.01=12.56r^2

Divide both sides by 12.56 to get:

25.00079618=r^2 and take the square root of both sides to find the radius:

r = 5

If the radius is 5 and the radius by definition is half the diameter, then the diameter is 10 inches.

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3 0
3 years ago
The equation h(t)= -16t^2+864t models the path of a rocket shot into the air. After how many seconds does the rocket hit the gro
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Answer:

t = 54 seconds

Step-by-step explanation:

The equation that models the path of a rocket into the air is given by :

h(t)= -16t^2+864t

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i.e.

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It means after 54 seconds, the rocket will hit the ground.

8 0
3 years ago
The product of 2 and a number minus 9 is 13
algol13
<h3><u>The value of the number is equal to 11.</u></h3>

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juin [17]

Answer:

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Step-by-step explanation:

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3 years ago
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