Calculate 4.8×10−3−9.4×10−6. Express the answer in scientific notation rounding to 2 decimal places.(1 point)

Answer 1

To subtract the numbers in scientific notation, we must have the same power of 10. So we need to rewrite 9.4×10^(-6) as 0.0094×10^(-3).

Then, the subtraction becomes:

4.8×10^(-3) - 0.0094×10^(-3)

= (4.8 - 0.0094) × 10^(-3)

= 4.7906 × 10^(-3)

Rounding to 2 decimal places, the answer in scientific notation is:

4.79 × 10^(-3)