Which number is not in scientific notation? a. 1.1 x 10^213 b. 7.8 x 10^8 c. 3.02 x 10^-10 d. 35 x 10^4

Answer

d. 35 x 10^4  is not in scientific notation

1 is not true because 12x does not have a y in it
2 is true
3 is not true because 12x does not have a y and 24y does not have a x
4 is true
5 is not true because 24y does not have an x in it
6 is true
7 is not true because 24y does not have an x in it
8 is true