Evaluate \(\frac{0.00000231}{0.007}\) and leave the answer in standard form
A
3.3 x 10-4
B
3.3 x 10-3
C
3.3 x 10-5
D
3.3 x 10-8
Verified Correct Answer: A.
Step-by-Step Mathematical Solution
\(\frac{0.00000231}{0.007}\) to standard form
= \(\frac{231 \times 10^{-8}}{7 \times 10^{-3}}\)
= 33 \times 10\(^{-8 − (−3)}\)
= 33 \times 10\(^{− 8 + 3}\)
= 33 \times 10-5
= 3.3 x 10^-4
Source: Myschool Past Questions Archive (Record #46347)