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3 years ago

Omg this is hard plz help

Mathematics

1 answer:

vladimir1956 [14]3 years ago

5 0

Answer:

257/2

Step-by-step explanation:

So in condition we need to know π=180 so when you multiply by π/180 or 180/π is one

it says we need to change from radian to degree so we need time 180/π

so it like this:

(257π)/360*(180/π)=257/2.

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What’s the product of r and 9

Nina [5.8K]

Answer:

Step-by-step explanation:

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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

Can someone pls explain this?

ryzh [129]

Answer:

A piecewise function.

Step-by-step explanation:

The problem you showed is a piecewise function.

In this problem, you have to plug in 3 for the value x.

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Way to check this input is undefined:

Plug in 3 for the variable x. On the first function, your output will be 4. On the second function, your output will be 8.

According to the definition of a function, a function can have many inputs but only one output. In this case, this function has one input, that is 3, but produces two outputs.

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Try each one of the options in turn

The question marks are negatives right?

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