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ivann1987 [24]
3 years ago
12

What is the area of the base of the cone below? Round the answer to the nearest tenth if necessary. A cone with height 8 inches

and volume 52 inches cubed. 14.7 inches squared 17.3 inches squared 18.5 inches squared 19.5 inches squared
Mathematics
2 answers:
docker41 [41]3 years ago
7 0

Answer:

The area of the circle is 19.5 in²

Step-by-step explanation:

First of all to solve this problem we have to know the formula to calculate the volume of a cone

v = volume  = 52 in³

r = radius

h = height  = 8 in

π = 3.14

v = 1/3 * π * r² * h

we solve r

3 * v /h * π = r²

we replace the known values

3 * 52 in³ / 3.14 * 8 in = r²

156 in³ / 25.12 in = r²

6.21 in² = r²

√6.21 in² = r

2.49 in = r

now that we have the radius we need to use the area formula of a circle:

a = area

r = radius = 2.49 in

π = 3.14

a = π * r²

we replace the known values

a = 3.14 * (2.49 in)²

a = 3.14 * 6.21 in²

a = 19.5 in²

The area of the circle is 19.5 in²

denpristay [2]3 years ago
7 0

Answer:

19.5

Step-by-step explanation:

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perter's glasses each hold 8 fluid ounces.how many glasses of juice can perter pour from a bottle that holds 5 quarts
NeX [460]

Answer:

8 glasses :)

Step-by-step explanation:

There is 32oz per quart. 8 goes in to 32 a total of four times. So since there are two quarts, Peter can pour 8 glasses.

From everything I've seen it should be 2 quarts from my knowledge. Sorry if this doesn't help!

3 0
4 years ago
The diagram shows one way to develop the formula for the area of a circle. Pieces of a circle with radius r are rearranged to cr
IRINA_888 [86]

Answer:

A = 1/2(2πr)(r)

Explanation:

The circumference of the circle, 2πr, is the measure completely around the circle.  When the pieces of the circle are rearranged, half of this circumference will be on the top of the parallelogram and half will be on the bottom.  This means the base will be 1/2(2πr).

The approximate height of the parallelogram is the radius of the circle; this makes the area

A = 1/2(2πr)(r)

7 0
3 years ago
Read 2 more answers
Please helpp mee huhu
horsena [70]

Answer:

Can u show the whole question

8 0
3 years ago
What is the simplified value of the expression below? 8.5 + (12 + 4) times 2 minus 7
Zolol [24]

Answer:

33.5  

-by-step explanation:

8.5 + (12 + 4) × 2 - 7

Use PEMDAS ( I think this is right hope it helps!)

8 0
3 years ago
HELP:. In baseball, the distance from the pitcher's mound to the batter is 60.5 feet. A pitcher can throw the baseball at 121 fe
zheka24 [161]
<h3>Answer:  D. 5 blinks</h3>

=========================================================

Explanation:

First we'll need to find out how long it takes for the ball to go from the pitcher to the batter.

It needs to travel 60.5 feet and does so at a speed of 121 ft/sec

distance = speed*time

time = distance/speed

time = (60.5 ft)/(121 ft per sec)

time = 0.5 seconds

In half a second, the ball is from the pitcher to the batter.

------------

An eye blink is 0.1 second which means we can form this equation

0.1 second = 1 blink

We multiply both sides by 5 to get the "0.1 second" to turn into "0.5 seconds".

So,

0.1 second = 1 blink

5*(0.1 second) = 5*(1 blink)

0.5 seconds = <u>5 blinks</u> which points us to choice D.

3 0
3 years ago
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