Evaluate frac 0 00000231 0 007 and leave the an... - JAMB Mathematics 2017 Question
Evaluate \(\frac{0.00000231}{0.007}\) and leave the answer in standard form
A
3.3 x 104
B
3.3 x 10-3
C
3.3 x 10-4
D
3.3 x 10-8
correct option: c
\(\frac{0.00000231}{0.007}\) to standard form
= \(\frac{231 \times 10^{-8}}{7 \times 10^{-3}}\)
= 33 × 10\(^{-8 − (−3)}\)
= 33 × 10\(^{− 8 + 3}\)
= 33 × 10-5
= \(\frac{231 \times 10^{-8}}{7 \times 10^{-3}}\)
= 33 × 10\(^{-8 − (−3)}\)
= 33 × 10\(^{− 8 + 3}\)
= 33 × 10-5
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