Question

Find the sum. Express the answer in scientific notation.(8.7 times 10 Superscript 9 Baseline) + (4.58 times 10 Superscript 9 Baseline)1.328 times 10 Superscript 81.328 times 10 Superscript 1013.28 times 10 Superscript 913.28 times 10 Superscript 18

Answer 1

SOLUTION:

Case: Scientific notation

Method:

$\begin{gathered} (8.7\times10^9)+(4.58\times10^9) \\ (8.7+4.58)\times10^9 \\ 13.28\times10^9 \\ But \\ Form \\ \rightarrow A\times10^n \\ Hence \\ 1.328\times10^1\times10^9 \\ 1.328\times10^{1+9} \\ 1.328\times10^{10} \end{gathered}$

Final answer:

$1.328\times10^{10}$