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Mathematics 18 Online
OpenStudy (anonymous):

please help! Find all the real cube roots of 0.000027. A. 0.0009 B. 0.03 and -0.03 C. 0.0009 and -0.0009 D. 0.03

OpenStudy (anonymous):

i know the answer isnt B.

OpenStudy (welshfella):

first what are the cube roots of 27?

OpenStudy (anonymous):

3?

OpenStudy (welshfella):

3 is correct -3 would give -27

OpenStudy (welshfella):

right it cant be B because of the -0.03

OpenStudy (anonymous):

oh so the answer should be D. sorry simple mistake! thank you!

OpenStudy (welshfella):

it must have a 3 in it so it cant be A or C

OpenStudy (welshfella):

yw

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