Question

Simplify the expression, and write answer in scientific notation

Answer 1

where is the expression?

Answer 2

\[\left( 4.2 \times 10^{-8} \right) \left( 2.4 \times 10^{5} \right)/ 2.4 \times 10^{3}\]

Answer 3

hold on

Answer 4

it's suppose to be a fraction (......) over 2.4 blah blah

Answer 5

I see it

Answer 6

the dash is the fraction line, right?

Answer 7

Ohhh okay!

Answer 8

yes. thank you <3

Answer 9

Anytime!

Answer 10

ANSWER: 0.0000042
(.000000042)(240, 000)
____________________________
(2400)

Answer 11

lmao what?

Answer 12

Do you know how to find standard notation?
And the dashes represent the fraction line.

Answer 13

I divided top over bottom

Answer 14

so what is the final answer?

Answer 15

2400?

Answer 16

ANSWER: 0.0000042

Answer 17

\[{(4.2\times10^{-8})(2.4\times10^{5}) \over 2.4\times10^3}=4.2\times10^{-6}\]

Answer 18

i have to write that answer in scientific notation, that isn't the right answer. it says it's wrong.

Answer 19

OH I'M SORRY. Then you change the answer I gave you to how many zeros are behind 4. AnwarA is correct.

Answer 20

thank you anwara

Answer 21

and thank you OMGirene for the help :]

Answer 22

Oh, no problem! Sorry for making a mistake.

Answer 23

can you explain how you got that pls?

Answer 24

The 2.4 in the top will be cancelled with the one in the bottom. You will be left with 4.8 times some powers of 10's. When you multiply numbers that have the same base you add powers, and when you divide them you subtract powers. So the answer will be \(4.8 \times 10^{-8+5-3}=4.8 \times 10^{-6}\).