Question

calculate.
\\((7.05 \times 10^7) + (3.7 \times 10^6)\\)
write your answer in scientific notation.

Explanation:

Step1: Convert to same exponent

Rewrite $7.05 \times 10^7$ as $70.5 \times 10^6$

Step2: Add the coefficients

$70.5 \times 10^6 + 3.7 \times 10^6 = (70.5 + 3.7) \times 10^6$

Step3: Simplify the sum

$74.2 \times 10^6$

Step4: Adjust to scientific notation

Rewrite $74.2 \times 10^6$ as $7.42 \times 10^7$

Answer:

$7.42 \times 10^7$