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kykrilka [37]
2 years ago
7

A cone has volume 12 cubic inches. Its height is 4 inches. What is its radius?

Mathematics
2 answers:
irina [24]2 years ago
8 0
The radius of the cubic is 2.9
Gekata [30.6K]2 years ago
6 0

the radius of this cone is 2.9

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You could sort them by how many sides the figure has, then it would be split up into 2 groups, one group with 4 sides and another with 3
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A cylinder and a cone have the same volume. The cylinder has radius x and height y. The cone has radius 2x. Find the height of t
n200080 [17]
\bf \textit{volume of a cylinder}\\\\
V_c=\pi r^2h\qquad 
\begin{cases}
r=radius\\
h=height\\
------\\
r=x\\
h=y
\end{cases}\implies V_c=x^2y\pi 
\\\\\\
\textit{volume of a cone}\\\\
V_n=\cfrac{\pi r^2h}{3}\qquad r=2x\implies V_n=\cfrac{\pi \cdot (2x)^2h}{3}
\\\\\\
V_n=\cfrac{\pi \cdot 2^2x^2h}{3}\implies V_n=\cfrac{4x^2h\pi }{3}\\\\
-------------------------------\\\\

\bf V_c=V_n\implies x^2y\pi =\cfrac{4x^2h\pi }{3}\implies 3x^2y\pi =4x^2h\pi 
\\\\\\
\cfrac{3x^2y\pi }{4x^2\pi }=h\implies \boxed{\cfrac{3y}{4}=h}
5 0
3 years ago
90,175,087,309 in expanded form
NemiM [27]
90,000,000,000
+ 0
+ 100,000,000
+ 70,000,000
+ 5,000,000
+ 0
+ 80,000
+ 7,000
+ 300
+ 0
+ 9

Expanded Factors Form:
9 × 10,000,000,000
+ 0 × 1,000,000,000
+ 1 × 100,000,000
+ 7 × 10,000,000
+ 5 × 1,000,000
+ 0 × 100,000
+ 8 × 10,000
+ 7 × 1,000
+ 3 × 100
+ 0 × 10
+ 9 × 1

Expanded Exponential Form:
9 × 1010
+ 0 × 109
+ 1 × 108
+ 7 × 107
+ 5 × 106
+ 0 × 105
+ 8 × 104
+ 7 × 103
+ 3 × 102
+ 0 × 101
+ 9 × 100

Word Form:

ninety billion, one hundred seventy-five million, eighty-seven thousand, three hundred nine
8 0
3 years ago
Read 2 more answers
The Captain has probability 2/3 of hitting the pirate ship. The pirate only has one good eye, so he hits the Captain's ship with
finlep [7]

Answer:

What we have to do bro

Step-by-step explanation:

please mark me as brainlest

8 0
2 years ago
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I don't know how to do this, can someone explain me ​
Kaylis [27]

Answer:

-8+√5a-5 =-3

√5a-5 =5

a=6

5(6)=30

30-5=25

√25=5

-8+5=-3

5 0
3 years ago
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