Hey guy's I was wondering if someone could help me out with this problem. Here is the problem.
The value of Cube root -89 is.
Answer between -4 and -5.
Any help will be appreciated. Thank you.
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Cube Root Question
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Negative cubes and cube roots have negative values.
-89 does have a cube root of around -4.46, but it is not an integer. The range of integers that the cube root of -89 lies between is:
-4 and -5
-4^3 = -64
-5^3 = -125
HTH
-89 does have a cube root of around -4.46, but it is not an integer. The range of integers that the cube root of -89 lies between is:
-4 and -5
-4^3 = -64
-5^3 = -125
HTH
-
AleksandrM
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Aaring,
This kind of a problem is useful to know because you will sometimes be asked to find a sqroot or cbroot of a number that does not have a perfect sqroot or cbroot. For example, what is the sqroot of 41. The way to look at it is as follows: 6 squared = 36 and 7 squared = 49. So the answer is somewhere between 6 and 7. Since 42 is closer to 36 than it is to 49, a good approximation might be 6.4.
This kind of a problem is useful to know because you will sometimes be asked to find a sqroot or cbroot of a number that does not have a perfect sqroot or cbroot. For example, what is the sqroot of 41. The way to look at it is as follows: 6 squared = 36 and 7 squared = 49. So the answer is somewhere between 6 and 7. Since 42 is closer to 36 than it is to 49, a good approximation might be 6.4.
