A) \[0.25\]
B) \[6.25\]
C) \[2.5\]
D) \[53\]
Correct Answer: A
Solution :
\[{{\left( \frac{1}{5} \right)}^{3y}}=0.008=\frac{8}{1000}\] \[\Rightarrow \] \[{{\left( \frac{1}{5} \right)}^{3y}}=\frac{1}{125}={{\left( \frac{1}{5} \right)}^{3}}\] \[\Rightarrow \] \[3y=3\Rightarrow y=1\] \[\therefore \] \[{{(0.25)}^{y}}=0.25\]You need to login to perform this action.
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