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MATHEMATICS

JAMB 2010 - Question 10

Mathematics 2010 JAMB Past Questions - Question 10: Express the product of 0.21 and 0.34 in standard form

Express the product of 0.21 and 0.34 in standard form

A: 7.14x10-¹

B: 7.14x10-²

C: 7.14x10-⁴

D: 7.14x10-³

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Correct Answer

Explanation

0.21 x0.34 = 0.0714 = 7.14 x10sup-2To express the product of 0.21 and 0.34 in standard form, we multiply the two numbers and then convert the result to standard form.0.21 * 0.34 = 0.0714To convert 0.0714 to standard form, we move the decimal point to the right until there is only one non-zero digit to the left of the decimal point. In this case, we move the decimal point two places to the right:0.0714 = 7.14 * 10^(-2)Therefore, the product of 0.21 and 0.34 in standard form is 7.14 * 10^(-2).