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Which of the following numbers have both a square root and a cube root
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26 Aug 2024, 02:17
26 Aug 2024, 02:17
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Question Stats:
85% (00:56) correct
14% (01:06) wrong based on 7 sessions
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Which of the following numbers have both a square root and a cube root as an integer?
A. 25
B. 1
C. 100
D. 64
E. 729
A. 25
B. 1
C. 100
D. 64
E. 729
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Re: Which of the following numbers have both a square root and a cube root
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29 Aug 2024, 06:38
29 Aug 2024, 06:38
1
Tip: You should definitely have basic squares memorized for speed; e.g., 5^2 = 25, 8^2 = 64
A.
The square root of 25 is 5, which is an integer.
The square root of 5 is ~2.24, which is not an integer.
Thus, A is not a solution.
B. 1
The square root of 1 is 1.
Thus, B is a solution.
C. 100
The square root of 100 is 10, which is an integer.
The square root of 10 is ~3.16, which is not an integer.
Thus, C is not a solution.
D. 64
The square root of 64 is 8, which is an integer.
The square root of 8 is ~2.83, which is not an integer.
Thus, D is not a solution.
E. 729
The square root of 729 is 27, which is an integer.
The square root of 27 is ~5.2, which is not an integer.
Thus, E is not a solution.
A.
The square root of 25 is 5, which is an integer.
The square root of 5 is ~2.24, which is not an integer.
Thus, A is not a solution.
B. 1
The square root of 1 is 1.
Thus, B is a solution.
C. 100
The square root of 100 is 10, which is an integer.
The square root of 10 is ~3.16, which is not an integer.
Thus, C is not a solution.
D. 64
The square root of 64 is 8, which is an integer.
The square root of 8 is ~2.83, which is not an integer.
Thus, D is not a solution.
E. 729
The square root of 729 is 27, which is an integer.
The square root of 27 is ~5.2, which is not an integer.
Thus, E is not a solution.
Re: Which of the following numbers have both a square root and a cube root
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29 Aug 2024, 09:07
29 Aug 2024, 09:07
B D E
