Question

Simplify this expression.
(2.7 × 10^4) + (5.6 × 10^4)

Answer 1

10^4(2.7+5.6)=8.3 x 10^4

Answer 2

imagine 10^4 as variable N, then your q looks like: 2.7N + 5.6N. simple we can solve, 8.3N where N is 10^4. so 8.3 x 10^4. but remember in the problem like this , you have to give answer in the scientific form, that the number 8.3 is between 1 and 10 and in the 3 significant figures. :)

Answer 3

so the answer is 8.3 x 10^4 thats what i keep coming up with

Answer 4

yes, not all teacher teach that the 8.3 must in the 3 significant figures, but if the teacher wants it in 3 sf, you must write 8.30

Answer 5

okay. thank you(:

Answer 6

u're wlcm