Question

30 x 10 to the power of -4 is???

Answer 1

300^-4
=1/300^4
=90000×90000
=8100000000

Answer 2

$\: \: \: \: 30 \times {10}^{ - 4} \\ = 30 \div {10}^{4} \\ = 30 \div 10000 \\ = 0.003.$



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