Question

The steps to determine the difference are shown.
(5.42 times 10 Superscript negative 15 Baseline) minus (4.98 times 10 Superscript negative 15 Baseline)

Step 1. Rearrange the expression: (5.42 minus 4.98) times 10 Superscript negative 15
Step 2. Subtract the coefficients: (0.44) times 10 Superscript negative 15
Step 3. Write in scientific notation: 4.4 times 10 Superscript k

What is the value of k in Step 3?

k =

Answer 1

-15