What is the sum of (1.3 × 10-7) and (-3.8 × 10-3)?
1 answer:
1.3 x 10⁻⁷ + -3.9 x 10⁻³
1.3 x 10⁻⁷ = 0.00000013
-3.9 x 10⁻³ = -0.0039
- 0.00390000
+ <u>0.00000013 </u>
- 0.00389987 ⇒ -3.8 x 10⁻³ CHOICE D.
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