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yKpoI14uk [10]
3 years ago
7

Find the volume of a cylinder with a diameter of 8 inches and a height that is three times radius

Mathematics
2 answers:
ollegr [7]3 years ago
6 0

Answer:

96π^2 = 947.48

Step-by-step explanation:

π × r² × h

8π times 3*4*π

Gnesinka [82]3 years ago
4 0

Answer: 603 cubic inches

Step-by-step explanation:

Let's find radius (r):

Diameter is double the radius, so the radius is 4 inches.

Let's find the height (h):

Height is 3 times the radius so the height is 12 inches.

Now let's find the volume:

V = πr^2 × h

V = π × 16 × 12

V = 603 cubic inches

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A rocket is launched from the top of a 99-foot cliff with an initial velocity of 122 ft/s.
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Lets replace the values into the the vertical motion formula to get:
0=-16 t^{2} +122t+99
Notice that the rocket hits the ground at the bottom of the cliff, which means that the final height is 99-foot bellow its original position; therefore, our final height will be h=-99
Lets replace this into our equation to get:
-99=-16 t^{2} +122t+99
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Now we can apply the quadratic formula t= \frac{-b+or- \sqrt{ b^{2} -4ac} }{2a} where a=-16, b=122, and c=198
t= \frac{-122+or- \sqrt{ 122^{2}-(4)(-16)(198) } }{(2)(-16)}
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t= \frac{-122+166}{-32} or t= \frac{-122-166}{-32}
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Since the time can't be negative, we can conclude that the rocket hits the ground after 9 seconds.
5 0
3 years ago
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Is 12.54 greater than 12.539?
Damm [24]

Answer:

yes

Step-by-step explanation:

12.54

>

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miskamm [114]
Simple...

you have: 4 \frac{4}{9}

To make this into an improper fraction-->>

1.) Multiply whole number by denominator

2.)Add the number you got plus the numerator

3.) Use the original denominator to finish your improper fraction

Example: 4\frac{4}{9}

4*9=36

36+4=40

\frac{40}{9}

Thus, your answer.
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3 years ago
-9 - (-7) = ?<br><br> Someone please explain
castortr0y [4]
-9-(-7)
-9+7=-2
....:,.,
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What is x divided by 7=9?
Arturiano [62]
Multiply 7 by 9 and you will get 63 which is x.
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