Question l.6: Multiply 7.40 × 10^5 by 3.12 × 10^9.
Multiply 7.40 \times 10^5 by 3.12 \times 10^9.
Solution
7.40 \times 3.12 = 23.1
Add exponents:
10^5 \times 10^9 = 10^{5+9}= 10^{14}
Answer:
23.1 \times 10^{14} = 2.31 \times 10^{15}
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