3 years ago

If f (x) = 3x + 5/x, what is f(a+ 2)?

Mathematics

1 answer:

Arlecino [84]3 years ago

8 0

F(a+2) = 3(a+2)+5/(a+2)
f(a+2) = 3a+6 + 5/(a+2)

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The volume of a CONE-shaped hole is 75pi ft cubed. If the hole is 9 feet deep, what is the radius of the hole?

Arturiano [62]

Answer:

The radius of hole is 5 feet

Step-by-step explanation:

Depth of conical hole = 9 feet

Let the radius of hole be r

Volume of conical hole = $\frac{1}{3} \pi r^2 h$

So, Volume of conical hole = $\frac{1}{3} \pi \times r^2 \times 9$

We are given that volume of a CONE-shaped hole is 75pi ft cubed.

So, $\frac{1}{3} \pi \times r^2 \times 9=75 \pi$

$\frac{1}{3} \times r^2 \times 9=75$

$r^2=\frac{75 \times 3}{9}$

$r=\sqrt{\frac{75 \times 3}{9}}$

r=5

Hence The radius of hole is 5 feet

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3 years ago

Jill works 10q hours a day. If she earns $6.50 an hour, how much does she earn a day? Give your answer in terms of q.

kolbaska11 [484]

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What are the steps to solving <br> 3x=4+2(3−x).

masya89 [10]

Answer:

x = 2

Step-by-step explanation:

How to find "x"

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I hope the helped!!!

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PLZ HELP WILL GIVE BRAINLIEST!!!!!!!!

Nimfa-mama [501]

C is the best one I'm pretty sure it makes the most sense

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Ede4ka [16]

The answer is 56.8
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