8.03 ✕ 10v-8 - 2.56 ✕ 10v-2 show your work in scientific notation

1 answer

To simplify the expression 8.03 × 10^(-8) - 2.56 × 10^(-2) in scientific notation:

8.03 × 10^(-8) can be expressed as 0.0000000803 in decimal form.
2.56 × 10^(-2) can be expressed as 0.0256 in decimal form.

Therefore, the expression becomes:

0.0000000803 - 0.0256

Now, we need to convert the result back to scientific notation.

0.0000000803 - 0.0256 = -0.0255999197

In scientific notation, this can be written as:

-2.55999197 × 10^(-2)