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2 years ago

I need help! with numbers 13-16!!!!

Mathematics

2 answers:

Nina [5.8K]2 years ago

8 0

Well, I'm not going to give you the answers, but first erase the "(variable) =". They already gave you the value of the variables, so you just have to multiply the variables, like for example, "7/8 × c, c = 6". It's telling you to multiply 7/8 by 6. The rest goes for everything and in the future, instead of writing it as 7/8 × c, it'll say 7/8c.

So yeah, just multiply the number by the variable, which already has a given value.

Put as brainliest =D

77julia77 [94]2 years ago

5 0

For number 13 the answer is 7. For number 14 is two third. For number 15 is three twenty. For number 16 is 4.

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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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2 years ago

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Vaselesa [24]

Answer:

69.993

Step-by-step explanation:

Using the percentage error formula:

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1% error in measurement

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True measurement = error in measurement + measured value

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Actual measurement = 69.993

Hence, actual measurement = 69.993.

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3 years ago

Read 2 more answers