Question

Miranda is adding the numbers below.
2.9x10^10 +5.35x10^10
What is the sum written in scientific notation?
A. 82.5x10^11
B. 8.25x10^10
C. 8.25x10^10
D. 82.5x10^-11

Answer 1

add the 2.9 to the 5.35 and append the x10^10

Answer 2

scientific notation is of the form


N.NN.. * 10^n where N.NN.. is a number between 1 and 10 (not including 10)

Answer 3

A 82.5*10^10 is NOT scientific notation because of the 82.5

Answer 4

note that options B and C are the same

Answer 5

Opps C Is Actually 8.25x10^20 sorry

Answer 6

right - so which on do you think it is?