Question

Which number is in scientific notation
A. 3.4 x 100^2
B. -5x10^-12***
C. 0.84x10^6
D. 7.8x10^5

Answer 1

Oh sorry typo the question is which number is Written in sceintific notation

Answer 2

I tried a and it was wrong

Answer 3

Scientific notation consists of a number between 1 and 10, multiplied by a power of 10.

I see only one that fits this.