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A small bird uses 5^-4 Joules of energy to sing a song. Write the amount of energy as a decimal.

a. 0.0004 c. 0.0016
b. 0.00016 d. 0.000016

1 Answer

4 votes
The answer is c.
We just have to apply the law of exponents:

=(1)/(5^4)
That´s equal to:

=(1)/(625)=0,0016


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