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zzz [600]
3 years ago
9

A sphere is inscribed in a cylinder. Use complete sentences and geometric formulas to compare the surface area of the sphere and

the lateral area of the cylinder.
Mathematics
1 answer:
grandymaker [24]3 years ago
7 0

Answer:

1 : 1

Step-by-step explanation:

When a circle is inscribed in a cylinder, the height of the cylinder is equal to the diameter of the sphere and the radius of the cylinder is same as that of the sphere.

Let the radius of sphere is r.

height of cylinder, h = 2r

radius of cylinder = r

Surface area of sphere, A = 4πr²

lateral surface area of cylinder, A' = 2 πrh

A' = 2πr x 2r = 4πr²

The ratio of surface area of sphere to the lateral surface area of cylinder is 1 : 1.

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Answer:

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Step-by-step explanation:

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3 years ago
Help solve the following equation: 20.6 + 2.1x = -8.2x
Igoryamba
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irakobra [83]

Answer:

x=1.25 and y=-5.5

Step-by-step explanation:

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3 years ago
Can a variable be a constant
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Step-by-step explanation:

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8 0
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A bag contains 10 marbles: 3 are green, 2 are red, and 5 are blue. Jose chooses a marble at random, and without putting it back,
Ludmilka [50]
We know that
g=3
r=2
b=5
total marbies=g+r+b------> 3+2+5----> 10

a) <span>probability that the first marble is red
P(red)=r/total marbies------------> 2/10-----> 1/5

b) </span><span>probability that the second marble is blue
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P(blue)=b/total marbles----------> 5/9

c) </span><span>the probability that the first marble is red and the second is blue
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the answer is
1/9</span>
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