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Alex Ar [27]
3 years ago
15

Answer ASAP for BRAINLIEST (NO LINKS OR I REPORT)

Mathematics
2 answers:
Westkost [7]3 years ago
8 0

Answer:

radius = 3 feet

Step-by-step explanation:

V = 1/3πr²h

15π = 1/3πr²·5

you can divide each side by 5π to get:

3 = r²/3

r² = 9

r = \sqrt{9} which is 3

Vlad [161]3 years ago
5 0

Answer:

3

Step-by-step explanation:

((r^2)h\pi )/3=volume of a cone

15\pi =((r^2)h\pi )/3

they say that the height is 5 so insert 5 for h

15\pi =\frac{r^2(5)\pi } {3}

solve for r

multiply both sides by 3

45\pi =r^25\pi

divide both sides by 5

9\pi =r^2\pi

r=3

Hope that helps :)

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A circle has an area of 497 square inches. What is the circumference of the circle?
Aleksandr-060686 [28]

Answer:

easy peasy

Step-by-step explanation:

we have, area = 497 sq. units

that is, (pi) (radius)^2=497

=> (22/7) x r^2 = 497

=> r^2 = 158.13

=> r = √158.13

=> r = 12.57

now we also have radius, soooo

=> circumference = 2 (pi) (radius)

=> (2) (22/7) (12.57)

=> 79.01 inches

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2 years ago
In 10 words or less, explain what it means for two segments to be parallel.
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Step-by-step explanation:

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2 years ago
sum of two numbers is 39. the greater number is 7 more than the smaller number. ( set up an equation )
pochemuha
Let x be the unknown number

2x +7 = 39

2x+7-7 = 39-7

2x = 32

2x/2 = 32/2

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You use the balance method to solve. First, you cancel the +7 by subtracting the 7 ON BOTH SIDES to balance the equation.. After that, you are left with 2x, where you will need to isolate the x by dividing by 2 ON BOTH SIDES to balance it.

Hope this helps
3 0
2 years ago
Sharifa's white ball rolled 143 centimeters in 4 seconds and her green ball rolled 112 centimeters in 3 seconds. Which ball roll
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Step-by-step explanation:

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While green ball 112/3=37.33

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3 years ago
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Read 2 more answers
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