Multiply 2.7 x 10^-4 by 6.3 x 10⁶ and leave your answers in standard form

A.

1.7 x 10³

B.

1.70 x 10³

C.

1.701 x 10³

D.

17.01 x 10³

View answer & explanation

Correct answer is C

2.7 x 10^-4 x 6.3 x 10⁶

= 2.7 x 6.3 x 10^-4 x 10⁶

= 17.01 x 10^{-4 + 6}

= 17.01 x 10²

= 1.701 x 10¹ x 10²

= 1.701 x 10^{1 + 2}

= 1.701 x 10³

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