Question I.7: Multiply 4.6 × 10^-7 by 9.2 × 10^4
Multiply 4.6 × 10^{-7}\text{ by } 9.2 × 10^{4}
4.6 × 9.2= 42
Add exponents:
10^{-7} × 10^{4} = 10^{-7+4} = 10^{-3}
Answer:
42 × 10^{-3} = 4.2 × 10^{-2}
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