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The value of (-89)^(1/3) is:

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The value of (-89)^(1/3) is:  [#permalink]

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New post 08 Oct 2018, 02:15
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A
B
C
D
E

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70% (00:50) correct 30% (00:50) wrong based on 228 sessions

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Re: The value of (-89)^(1/3) is:  [#permalink]

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New post 07 Mar 2019, 06:55
1
Bunuel wrote:
The value of \(\sqrt[3]{-89}\) is:

(A) Between -9 and -10
(B) Between -8 and -9
(C) Between -4 and -5
(D) Between -3 and -4
(E) undefined


Since (-4)^3 = -64 and (-5)^3 = -125, the 3rd root of -89 is between -4 and -5.

Answer: C
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Re: The value of (-89)^(1/3) is:  [#permalink]

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New post 08 Oct 2018, 02:19
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Re: The value of (-89)^(1/3) is:  [#permalink]

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New post 08 Oct 2018, 07:53
1
Bunuel wrote:
The value of \(\sqrt[3]{-89}\) is:

(A) Between -9 and -10
(B) Between -8 and -9
(C) Between -4 and -5
(D) Between -3 and -4
(E) undefined


\(-5^3 < 89 < -4^3\)

Or, \(-125< - 89 < -64\), Hence, Answer must be (C)
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Re: The value of (-89)^(1/3) is:  [#permalink]

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New post 04 Mar 2019, 17:01
Why is it C?

Shouldn't be undifined?
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New post 04 Mar 2019, 20:42
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Re: The value of (-89)^(1/3) is:  [#permalink]

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New post 05 Mar 2019, 07:21
Bunuel wrote:
The value of \(\sqrt[3]{-89}\) is:

(A) Between -9 and -10
(B) Between -8 and -9
(C) Between -4 and -5
(D) Between -3 and -4
(E) undefined



3√-5= -125 and 3√-4 = -64
value -89 will lie in between them
IMO C
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Re: The value of (-89)^(1/3) is:   [#permalink] 05 Mar 2019, 07:21
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