Question

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

Answer 1

-42 In Scientific notation would be 4.2 × 101

Answer 2

Answer: I'm pretty sure the answer is −6.62 × 10^−8 and if you're taking the quiz on flvs then it should be B.

gl on ur quiz!