Add 7.3×10

Question

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

9.1+10
7

9.1×10
14

9.1×10
7

8.1×10
7

Answer 1

To add the numbers \(7.3 \times 10^7\) and \(1.8 \times 10^7\), we can add their coefficients since they share the same power of 10:

\[ 7.3 + 1.8 = 9.1 \]

Thus, the sum is:

\[ 9.1 \times 10^7 \]

So, the correct answer is:

9.1×10^7