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Arte-miy333 [17]
3 years ago
9

A sphere with a radius of 3 cm has the same volume as a cone with a radius of 6 cm. What is the height of the cone?!

Mathematics
2 answers:
Leona [35]3 years ago
5 0

Answer:

B

Step-by-step explanation:

idk

Ivenika [448]3 years ago
4 0

Answer:

Step-by-step explanation:

VC = (1/3)·pi·r2·h

VC = volume of a cone

r = radius of base of cone = 6 cm

h = height

VC = (1/3)·pi·62·h

VC = 12·pi·h

VS = (4/3)·pi·r3

VS = volume of a sphere

r = radius of base of sphere = 3 cm

VS = (4/3)·pi·33

VS = 36·pi

Since the volume of the cone and the sphere are equal:

VC = VS

12·pi·h = 36·pi

Solve for h.

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A pyramid has a square base with an area of 169ft. What is the perimeter of the base of the pyramid?
ArbitrLikvidat [17]

Answer:52 ft.

Step-by-step explanation: If the area of the base of the pyramid is

169

ft

2

then each side of the base is

13

ft

long because the base of the pyramid is a square.

Length of the side,

s

=

√

169

=

13

Iif we take the area of a square

A

=

s

2

where

s

=

13

we get the area of the base to be

169

ft

2

thus proving that each side of the base is

13

ft

long.

So to find the perimeter of the base of the pyramid we use the formula:

P

=

4

s

where

s

=

13

ft

and thus,

p

=

4

⋅

13

ft

=

52

ft

7 0
3 years ago
Can someone help me with these 2 answers please and show me how to show my work please!!!!
ruslelena [56]
So for the first one, you would have to multiply 2 six times. and then 2 with a -4 exponent is a little challenging. Okay, you would have to make it a fraction. so it would be 1/16. then you would just multiply 2 seven times. 
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2 years ago
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The square rootof which number is rational a7. b 1.96. c. 0.04. d. 13​
artcher [175]

Answer:

B and C

Step-by-step explanation:

We need to find which one of these numbers is a perfect square. We know 7 and 13 can be eliminated since they're prime numbers so they can't be perfect squares. B and C are both perfect squares so that's the answer.

3 0
3 years ago
Read 2 more answers
Help i will give brainlist.
Mekhanik [1.2K]

Answer:

3m^4  

Step-by-step explanation:

the third one

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2 years ago
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