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Nostrana [21]
2 years ago
6

There are two right circular cylinders. The radius of the first cylinder is 3 centimeters, and its height is 5 centimeters. The

radius of the second cylinder is 15 centimeters, but its height is also 5 centimeters. What is the ratio of the volume of the second cylinder to the volume of the first cylinder? A. 9:1 B. 16:1 C. 36:1 D. 25:1
Mathematics
1 answer:
FinnZ [79.3K]2 years ago
8 0
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Is the number 3 a rational number?
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Yes.

Step-by-step explanation:

The number 3 is a <u>natural number</u>, and all of these types of numbers are rational.

Another way to look at it is if a number can be <u>written as a fraction</u>, the number is rational.

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The formula for the quadratic formula is x (c in this case) = (-b(+/-)√(b²-4ac))/2a
This is used for an equation in standard quadratic form: ax² + bx + c = 0
1.) Put it in the correct form, if not already in it.
Ex. c² + 6c + 8 = 0
2.) Identify each part of the equation:
a = 1 (the leading coefficient), b = 6 (the coefficient in front of the second variable), c = 8
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4.) Simplify
c = (-6(+/-)√(36-(4*8))/2
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*Here, the equation splits in two. It becomes:
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*Simplify again:
c = -4/2 AND c = -8/2
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The answers c = -2 and c = -4 would solve the given equation.
Hope this helps! :)
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Step-by-step explanation:

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