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MATHEMATICS

JAMB 2021 - Question 3

Mathematics 2021 JAMB Past Questions - Question 3: Express the product of 0.00043 and 2000 in standard form.

Express the product of 0.00043 and 2000 in standard form.

A: 8.6 x 10

B: 8.3 x 10-³

C: 8.6 x 10-²

D: 8.6 x 10-¹

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Correct Answer

Explanation

To express the product of 0.00043 and 2000 in standard form, we can multiply the two numbers together and then adjust the decimal point accordingly.0.00043 * 2000 = 0.86Since the product is less than 1, we can move the decimal point two places to the right to express it in standard form:0.86 = 8.6 x 10^(-1)