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2 years ago

13

The area A of a circle in square feet with a radius r in feet is given by the formula, A=πr2. What is the area of a circle with

a radius of 3 feet? Round your answer to the nearest thousandths.

1 answer:

alekssr [168]2 years ago

3 0

Answer:

28.29

Step-by-step explanation:

A=πr2

=3.14(3^2) (btw the ^2 is exponent)

=3.14(9)

=28.29

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use pythagoras:

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c^2 = 560

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2 years ago

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garik1379 [7]

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2 years ago

15 POINTS ANSWER ASAP, SHOW WORK

forsale [732]

Answer:

$V=97.6\ in^3$

Step-by-step explanation:

step 1

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The volume of the cylinder is equal to

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we have

$r=4/2=2\ in$ ---> the radius is half the diameter

$h=8\ in$

substitute

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step 2

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we have

we have

$r=2\ in$ ---> the radius is the same that the radius of the cylinder

$h=0.70\ in$

substitute

$V=\frac{1}{3}\pi (2)^{2} (0.70)\\\\V=0.93\pi\ in^3$

step 3

Find the volume of the plastic object

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8 0

2 years ago

luna ray has 1 orange pick for every 2 green picks.How manu green picks does luna have if she has 12 total picks

Bess [88]

This is how you do it!

So, There is a ratio of 1:2 for the orange to green.
This means that e can write an equation like this:

Let x be the orange picks

x + 2x = 12
3x = 12
x = 4

This means that there are 4 orange picks, and also 8 green picks

Now we can check that by simplifying the ratio --> 4:8 = 1:2

Therefore, your answer would be 8 green picks

Hope this helped!

3 0

2 years ago

Read 2 more answers