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3 years ago

What is the circumference of circle P? Express your answer in terms of π.

Mathematics

1 answer:

Zolol [24]3 years ago

7 0

Answer:

Circumference of a circle= $2\pi r$

Step-by-step explanation:

The circumference of any circle is the total length of its boundary which can be calculated by the formula:

Circumference of a circle= $2\pi r$

Where 'r' is the radius of the circle

For, the given circle the circumference can be find in terms of $\pi$ by putting some value of radius in the formula, which gives the circumference in terms of $\pi$ .

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What is the slope of the line?

xeze [42]

Answer:

1/3

Step-by-step explanation:

Slope is rise over run.

Pick a point and count how many steps up and how many steps to the right you need to make to get to the next point. That's how you find slope.

3 0

2 years ago

Determine the volume of the figure. Use 3.14 for π. Round your answer to the nearest tenth. Show all of your work.

Ostrovityanka [42]

Answer:

1985 cubic units (written as un. with the cubed exponent)

Step-by-step explanation:

First, you find the volume of the cylinder

Here's the formula:

$V=\pi r^{2}h\\V=volume\\r=radius\\h=height$

Now, you plug in and solve.

$V=(3.14)(7.2^{2})(7.4)\\V=(3.14)(51.84)(7.4)\\V=(162.7776)(7.4)\\V=1204.55424\\rounded:\\V=1204.6$

Then, you find the volume of the dome.

Here's the formula:

$volume/of/a/sphere=\frac{4}{3}\pi r^{3}\\volume/of/a/dome:\\V=\frac{2}{3}\pi r^{3} \\V=volume\\r=radius$

Now, you just plug in and solve.

$V=(\frac{2}{3})(\pi)(r^{3})\\V=(\frac{2}{3})(3.14)(7.2^{3})\\V=(\frac{2}{3})(3.14)(373.248)\\V=(2.093)(373.248)\\V=781.208064\\rounded:\\V=781.2$

Finally, you add them together, and there's your answer!

$1204.6+781.2=1985.8$

Hope this helped!

<em>brainliest?</em>

8 0

3 years ago

You bought a magazine for $5 and four erasers. You spent a total of $25. How much did each eraser cost? Include a let statement

ZanzabumX [31]

Answer:

5$??.

Step-by-step explanation:

If a magazine was 5$, 25-5= 20. So then, 20÷4= 5. There fore an eraser costs 5$.

3 0

4 years ago

Read 2 more answers

A water pump fills a swimming pool at a rate of 80

Nat2105 [25]

9514 1404 393

Answer:

5 hours

Step-by-step explanation:

The volume of the pool is ...

V = LWH

V = (10 ft)(8 ft)(5 ft) = 400 ft^3

At the given fill rate, the time it will take is ...

(400 ft^3)/(80 ft^3/h) = 5 h

It will take 5 hours for the pump to fill the pool.

3 0

3 years ago

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Solve the following equation 3x-1=2x -2/3

algol13

Answer:

its 13

Step-by-step explanation:

5 0

3 years ago

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