Question

What is the product of 8.2 × 109 and 4.5 × 10-5 in scientific notation?

36.9 × 10-45
12.7 × 104
3.69 × 105
3.69 × 1014

Answer 1

(8.2 x 10^9) x (4.5 x 10^-5) = (8.2 x 4.5) x 10 ^(9 - 5) = 36.9 x 10^4 = 3.69 x 10^5

Explanation: