Question

How many places to the left should the decimal point be moved to write 7.2 × 10-9 in standard form?

7

8

9

10

Answer 1

9

Answer 2

thank u

Answer 3

The power of the 10 is the number of places

Answer 4

okaee....

Answer 5

Divide (9.2 × 1028) ÷ (4.6 × 109). Express the answer in scientific notation.

2 × 1037

2 × 1017

2 × 10-19

2 × 1019

Answer 6

A power is the little number that is above 10 teaira

Answer 7

i know now but thank u..