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airealwinter
airealwinter airealwinter
  • 29-06-2016
  • Mathematics
Answered

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

A0.0004 c. 0.0016
B0.00016 d. 0.000016

Verified Answer :

Hanibal
Hanibal Hanibal
  • 29-06-2016

The answer is c.
We just have to apply the law of exponents:
\(=\frac{1}{5^4}\)
That´s equal to:
\(=\frac{1}{625}=0,0016\)


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