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attashe74 [19]
3 years ago
10

What is the sum of (1.3 × 10-7) and (-3.8 × 10-3)?

Mathematics
1 answer:
pav-90 [236]3 years ago
8 0
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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