Question

What is the following number in decimal form?

8.61 × 10 –8

A.
0.000000861

B.
0.0000000861

C.
8,610,000

D.
861,000,000

Answer 1

The exponent -8 means "move the decimal point 8 places to the left"

Answer 2

10^-8 means if you move the decimal to the left it becomes 10^-7. So keep counting until you get to zero & what do you get?

Answer 3

if you give me the full anwser you get a medal and fan plz

Answer 4

Example:
Here, the -5 exponent means "move the decimal point 5 places to the left."