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# If r > 0, then (0.25r^6)^(1/2) =

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Math Expert
Joined: 02 Sep 2009
Posts: 58381
If r > 0, then (0.25r^6)^(1/2) =  [#permalink]

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25 Feb 2019, 00:07
00:00

Difficulty:

15% (low)

Question Stats:

86% (00:29) correct 14% (01:11) wrong based on 37 sessions

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If $$r > 0$$, then $$\sqrt{0.25 r^6} =$$

A. $$0.05 r^3$$

B. $$0.05 r^4$$

C. $$0.05 r^5$$

D. $$0.5 r^2$$

E. $$0.5 r^3$$

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Joined: 31 Oct 2013
Posts: 1469
Concentration: Accounting, Finance
GPA: 3.68
WE: Analyst (Accounting)
Re: If r > 0, then (0.25r^6)^(1/2) =  [#permalink]

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25 Feb 2019, 00:37
Bunuel wrote:
If $$r > 0$$, then $$\sqrt{0.25 r^6} =$$

A. $$0.05 r^3$$

B. $$0.05 r^4$$

C. $$0.05 r^5$$

D. $$0.5 r^2$$

E. $$0.5 r^3$$

$$\sqrt{(0.5)^2 (r^3)^2}$$

=$$(0.5)(r)^3$$

E is the correct answer.
Re: If r > 0, then (0.25r^6)^(1/2) =   [#permalink] 25 Feb 2019, 00:37
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# If r > 0, then (0.25r^6)^(1/2) =

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