Question

Perform the following operation express the answer in scientific notation 7.30x10^2 + 2.80x10^3

Answer 1

Given

The expression,

$7.30\times10^2+2.80\times10^3$

To express the answer in scientific notation:

Explanation:

It is given that,

$7.30\times10^2+2.80\times10^3$

That implies,

$\begin{gathered} 7.30\times10^2+2.80\times10^3=(\frac{7.30}{10}+2.80)\times10^3 \\ =(0.730+2.80)\times10^3 \\ =3.53\times10^3 \end{gathered}$

Hence, the answer is 3.53×10³.