Add 7.3 × 10^7 + 1.8 × 10^7 . Which is the correct sum?(1 point)

Question

Responses

9.1+107
9.1 plus 10 superscript 7 baseline

9.1×1014
9.1 times 10 superscript 14 baseline

9.1×107
9.1 times 10 superscript 7 baseline

8.1×107

Answer 1

To add \( 7.3 \times 10^7 \) and \( 1.8 \times 10^7 \), we simply add the coefficients since they have the same exponent:

\[ 7.3 + 1.8 = 9.1 \]

So the result is:

\[ 9.1 \times 10^7 \]

The correct answer is:

9.1×10^7 (9.1 times 10 superscript 7 baseline)