Question

When you write the given number in scientific notation, what is the exponent in the power of 10?

0.000072 = 7.2 x 10^?

Answer 1

I got 5

Answer 2

@hexagon001

Answer 3

Good job!!

Answer 4

thank god

Answer 5

Well...that is only the first part.

Answer 6

You have the number of places right. Now you have to figure out which direction.

Answer 7

thats all i needed in the prob

Answer 8

So yes...the decimal has to be moved 5 places...which way...right or left?

Answer 9

Let's approach it a different way.

Answer 10

Is 0.000072 a big number or a little number?

Answer 11

Little

Answer 12

So when you write it in scientific notation, the exponent should be negative.

Answer 13

You moved the decimal 5 places to the right when you wrote 7.2. Now you have to "fix" that with your exponent. And the -5 says "move the decimal point 5 places to the left".
That means you will have your original number back again. So you have not changed the number...only the form is which it is written.

Answer 14

ok

Answer 15

i dont know the answer

Answer 16

@Mertsj