Question

Simplify 7(2.3 x 10^11) and write in scientific notation.

EDIT: It's 1.61 x 10^12

Answer 1

The 12 in the exponent shows the number of zeros we need to put. The .61 is 2 zeros, so we need 10 zeros after we make the .61 into 61. So the answer will be 161000000000.