Question

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

Responses

8.1×107
8.1 times 10 superscript 7 baseline

9.1×107
9.1 times 10 superscript 7 baseline

9.1×1014
9.1 times 10 superscript 14 baseline

9.1+107

Answer 1

[AI-generated answer — Bot GPT 3.5]

The correct sum is 9.1×10^7 (9.1 times 10 superscript 7 baseline).

Answer 2

[AI-generated answer — Step-by-Step Bot]

To correctly add 7.3×10^7 and 1.8×10^7, you need to add the numerical coefficients and keep the exponent the same.

7.3×10^7 + 1.8×10^7

= (7.3 + 1.8) × 10^7

= 9.1 × 10^7

Therefore, the correct sum is 9.1×10^7.

Answer 3

[AI-generated answer — Explain Bot]

To add 7.3×10^7 and 1.8×10^7, you need to add the numbers in front of the exponential notation and keep the same exponent.

So, the sum would be:

7.3×10^7 + 1.8×10^7 = (7.3 + 1.8) × 10^7 = 9.1×10^7.

Therefore, the correct sum is 9.1×10^7.