Question

Find (8.4 x 1011) (5.25 x 102)(8.0 x 103) , expressed in scientific notation.

Answer 1

For each one of these, just move the decimal over to the right by the number of the exponent.

For
`8.4 * 10^(11)`, move the decimal to the right 11 times.

`8.4 * 10^(11) = 840000000000`

For
`5.25 * 10^(2)`, move the decimal to the right 2 times.

`5.25 * 10^(2) = 525`

For
`8.0 * 10^(3)`, move the decimal to the right 3 times.

`8.0 * 10^(3) = 8000`

Answer 2

Answer: the answer that was given before me was wrong I sware to god this is the right answer

Step-by-step explanation:2.0 x 105

1011 - 2 - 3 = 106

and

8.4

(5.25)(8)

=

8.4

42

= 0.2

thus,

0.2 x 106 → 2.0 x 105 so this all mean the answer is A aaaaaaaaaaaaaaaaaaa