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AleksandrR [38]
3 years ago
15

A company makes cones out of solid foam. Each cone has a height of 9 inches, and its base has a diameter of 5 inches. How much f

oam is needed to make 120 cones?
Mathematics
2 answers:
Marrrta [24]3 years ago
5 0

Answer:

0.375

Step-by-step explanation:

BARSIC [14]3 years ago
5 0

Answer: 2250 pi

Step to do:

where  is the volume of the cone,  is the radius of the base, and  is the height of the cone.

In the given problem, we know that  and . Using this, we can find the volume of a single cone:

Since the problem asks how much foam is needed to make 120 cones, we can multiply this result to get our answer:

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Answer:

Step-by-step explanation:

For equating the equations, you get

 

x2 + kx - 3x + 4 = 0               eq1

 

 

Setting the derivative of f(x) equal to 3 yields

 

f'(x) = 3

 

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Now we substitute the value of k from eq2 into eq1.

 

x2 + x(3 - 2x) - 3x + 4 = 0

 

 

Solve for x from this equation.  Then plug in the value of x into eq2 to solve for k

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azamat

Answer:

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Step-by-step explanation:

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