Answered

Calculate (4.2 ∙ 105) cm ∙ (4.0 ∙ 10-9) cm2.

Please help!

1.7 -3

2 14

1.68

Verified Answer :

taskmasters

I believe the givens should be written in this manner,
                              (4.2 x 10⁵)(4.0 x 10⁻⁹)
To answer, we first multiply the bases 4.2 and 4 which will give us,
                                            16.8
Then, we multiply the multipliers by adding up the exponents of 10. This will give us the answer of,
                                      16.8 x 10⁻⁴
Then, the final answer would be 1.68 x 10⁻³.

rickymenge00

Answer:

1.68x10-3

Explanation:

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