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For each calculation choose the correct answer written in standard form​

For each calculation choose the correct answer written in standard form​-example-1
User LMH
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1 Answer

4 votes

a) To multiply, add the exponents:
\( (7 * 10^5)(3 * 10^2) =
21 * 10^(5+2) = 21 * 10^7 \). Therefore, the correct answer is B. b) To divide, subtract the exponents:
\( (2 * 10^5)/(4 * 10^2) = 0.5 * 10^(5-2) = 0.5 * 10^3 \). Therefore, the correct answer is C.

a) When multiplying
\((7 * 10^5)(3 * 10^2)\), add the exponents to get
\(21 * 10^7\). Therefore, the correct answer is B:
\(21 * 10^7\).

b) For division
\((2 * 10^5)/(4 * 10^2)\), subtract the exponents resulting in
\(0.5 * 10^3\). Thus, the correct answer is C:
\(0.5 * 10^3\). These operations showcase the rules of exponents, simplifying expressions in standard form for efficient mathematical representation.

User Barrymac
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4.2k points