Answer:
The answer to your question is: C. 1.4 x 10⁻⁸
Step-by-step explanation:
Change 0.0000000135 to scientific notation
Just move the decimal point 8 points to the right an express the number like
x 10
1.35 x 10⁸ but we only need two significant figures so 1.4 x 10⁻⁸
A. 1.3 x 10⁻⁷ This option is not correct, we have to move the decimal point one more place to the right
B. 1.3 x 10⁸ This option is not correct because the power must be negative
C. 1.4 x 10⁻⁸ This is the right answer
D. 1.4 x 10⁻⁷ 1.4 is correct but the power must be negative
