Question

Help plz!

Answer 1

careful careful here
this can be very confusing

Answer 2

lets go nice an slow ok?

Answer 3

It is. I want to work it out

Answer 4

we need to do three things
ready?

Answer 5

yes

Answer 6

first lets multiply the numbers out front
\[4.5\times6 = ?\]

Answer 7

27

Answer 8

right
notice that it is larger than 10, so we will have to adjust something
put that aside for a second and add the exponents \[-8+(-4)=?\]

Answer 9

It is D

Answer 10

-12

Answer 11

right

Answer 12

so one answer (not the final one) is \[27\times 10^{-12}\]

Answer 13

you can't use \(27\) because it is larger than 10 so you have to use \(2.7\)
that means you have to change the exponent as well

Answer 14

when you go from \(27\) to \(2.7\) you are dividing by 10
to compensate you have to add 1 to the exponent
what i s\(-12+1\)?

Answer 15

im back sorry it's -11
SO that means it's D.

Answer 16

tysm @misty1212! I got a 100%!!!