Question

4 of 10
07:10
An expression is shown.
(13.6 × 108) + (9.9 × 108)
(2.5 × 107)


Which expression is equivalent?
A 9.4 × 1015
B 9.4 × 101
C 9.4 × 1012
D 9.4 × 102

Answer 1

Interpret the expression as ((13.6 × 10^8) + (9.9 × 10^8)) ÷ (2.5 × 10^7).

Combine the numerator: (13.6 + 9.9) × 10^8 = 23.5 × 10^8.

Divide: (23.5 ÷ 2.5) × 10^(8−7) = 9.4 × 10^1.

Answer: B.