Question

help

Answer 1

What do you think it is?

Answer 2

is it d?

Answer 3

No, do you want me to guide you through it or do you want to try one more time?

Answer 4

\[\large (2.5 \times 9)(10^{-8} \times 10^{-9})\]
However, remember that the bases (in scientific notation) needs to be between 1 and 10.

Answer 5

^

Answer 6

explain

Answer 7

Your product is really 22.5 (which is not between 1 and 10) so you need to move the decimal place to the left to make it 2.25 (which is between 1 and 10).

Answer 8

When you do that, you need to do an extra step

Answer 9

wow confusing

Answer 10

When you multiply 2.5 and 9, you get 22.5, which is not in scientific notation, so you must change it back

Answer 11

\[\huge 2.25 \times 10^1 \times 10^{-18}\]

Answer 12

so a

Answer 13

\[\huge 10^1 \] is needed because you moved the decimal one place to the left.

Now the reverse can be applied to when you need to move the decimal place to the left.
\[\huge 10^{-1}\]

Answer 14

No, it will still be negative

Answer 15

Not really what is
\[\large 1 + {-18} \]

Answer 16

That will be your exponent, while 2.25 is your base.

Answer 17

-17

Answer 18

Good.. so what's your final answer now?

Answer 19

thanks both of u

Answer 20

c

Answer 21

Yes

Answer 22

Correct!