Simplify (2.8 × 10−9) − (6.9 × 10−8). Write the final answer in scientific notation pleeeease help!!

asked Jun 16, 2023 84.6k views

5 votes

Simplify (2.8 × 10−9) − (6.9 × 10−8). Write the final answer in scientific notation

pleeeease help!!

by Dsghi

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5 votes

Answer:

-4.2 x 10^1

Explanation:

Simplify expression regularly, and then convert to scientific notation by moving decimal and dividing.

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