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Mama L [17]
3 years ago
11

What is a perfect cube and how can you check if a given number is a perfect cube? Explain why.

Mathematics
2 answers:
Morgarella [4.7K]3 years ago
7 0
A perfect cube<span> is a whole number which is the </span>cube<span> of another whole number. </span>In order to check whether a number is a perfect cube or not, we find its prime factors and group together triplets of the prime factors. If no<span> factor is left out then the number is a perfect cube.</span>
andrew11 [14]3 years ago
7 0

Answer:

A perfect cube is a number that is the result of multiplying a whole number by itself three times. Check a number by finding the cube root. If the cube root is a whole number, then the number is a perfect cube.

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All you have to do is plug in the number for x, and find y. I will write this out as if in that chart you have shown.

x                            y = 9 - 3x                                    y

_______________________________________

0                           y = 9 - 3(0)                                  9

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2                           y = 9 - 3(2)                                  3

3                           y = 9 - 3(3)                                  0


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