Add 7.3×107+1.8×107. Which is the correct sum?(1 point)
Responses
8.1×107
8.1 times 10 superscript 7 baseline
9.1×1014
9.1 times 10 superscript 14 baseline
9.1×107
9.1 times 10 superscript 7 baseline
9.1+107
The correct sum is 9.1×107 (9.1 times 10 to the power of 7).
To add the numbers 7.3×10^7 and 1.8×10^7, we need to add the coefficients (7.3 and 1.8) and keep the base (10) raised to the same exponent (7).
So, the sum of the two numbers is 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.
To add 7.3×10^7 and 1.8×10^7, you add the coefficients (7.3 and 1.8) and keep the same exponent (7) since the numbers have the same power of 10.
Therefore, the correct sum is 9.1×10^7.