Evaluate (frac{0.00000231}{0.007}) and leave the answer in standard form

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
Correct Answer: Option A
Explanation

(frac{0.00000231}{0.007}) to standard form
= (frac{231 times 10^{-8}}{7 times 10^{-3}})
= 33 × 10(^{-8 − (−3)})
= 33 × 10(^{− 8 + 3})
= 33 × 10-5

= 3.3 x 10^-4

There is an explanation video available below.

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