Question

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

Answer 1

First, let's express both numbers in decimal form:

1. \(4.8 \times 10^{-3} = 0.0048\)
2. \(9.4 \times 10^{-6} = 0.0000094\)

Now, we can perform the subtraction:

\[
0.0048 - 0.0000094 = 0.0047906
\]

Next, we need to convert this result back into scientific notation.

To express \(0.0047906\) in scientific notation, we write it as:

\[
4.7906 \times 10^{-3}
\]

Now we round \(4.7906\) to two decimal places:

\[
4.79
\]

Thus, the final result in scientific notation is:

\[
\boxed{4.79 \times 10^{-3}}
\]