test yourself! practice tool\nfind the sum. w...
test yourself! practice tool\nfind the sum. write your answer in scientific notation, with the decimal to the nearest thousandth.\n$(1.37\times 10^{12})+(23.47\times 10^{14})$
Answer
# Explanation:
## Step1: Rewrite numbers with same exponent
Rewrite $1.37\times 10^{12}$ as $0.0137\times 10^{14}$.
## Step2: Add the coefficients
$(0.0137 + 23.47)\times10^{14}=23.4837\times 10^{14}$.
## Step3: Convert to proper scientific - notation
$23.4837\times 10^{14}=2.34837\times 10^{15}$. Rounding to the nearest thousandth, we get $2.348\times 10^{15}$.
# Answer:
$2.348\times 10^{15}$