Home » Past Questions » Mathematics » Find the product of 0.0409 and 0.0021 leaving your answer in the standard form

Find the product of 0.0409 and 0.0021 leaving your answer in the standard form


Question

Find the product of 0.0409 and 0.0021 leaving your answer in the standard form

Options

A) 8.6 x 10-6

B) 8.6 x 105

C) 8.6 x 10-4

D) 8.6 x 105

The correct answer is B.

Explanation:

0.0409 x 0.0021 = 409 x 10-4 x 21 x 10-4

= 409 x 21 x 10-4-4

= 8589 x 10-8

= 8.589 x 103 x 10-8

= 8.6 x 103 - 8

= 8.6 x 10-5


More Past Questions:


Dicussion (1)