Question

A spaceship traveled 12 trillion miles. In scientific notation that is _____ miles.

A. 1.2 × 10^-12
B. 1.2 × 10^-13
C. 1.2 × 10^13
D. 1.2 × 10^12

Answer 1

1 million is 1 x 10^6

1 billion is 1 x 10^9

1 trillion is 1 x 10^12


So 12 trillion miles is 12 x 10^12 which converts to 1.2 x 10^1 x 10^12 = 1.2 x 10^13