laneuensgrett laneuensgrett
  • 03-02-2016
  • Mathematics
contestada

What is the sum of (1.3 × 10-7) and (-3.8 × 10-3)?
A. 2.5 × 10-10
B. -2.5 × 10-4
C. 3.8 × 10-3
D. -3.8 × 10-3

Respuesta :

taskmasters
taskmasters taskmasters
  • 03-02-2016
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
+ 0.00000013   
 - 0.00389987 ⇒ -3.8 x 10⁻³  CHOICE D.

Answer Link

Otras preguntas

The spherical object within a cell that controls its activity is the _____.
what is an Ab pattern
Solve the inequality. Show your work. 6y - 8 = 10
The Embargo Act of 1807 stopped trade with England, thus decreasing American production. TrueFalse
___________ is the rules for speaking or writing a language. a. Syntax b. Grammar c. Vocabulary d. Terminology
Solve for g 7h+f=2h+g
Is there any scientific evidence about planet 9? Has it been discovered yet? Is there any type of life on it?
48 is 60% of what number
A sequence is defined recursively using the equation f(n + 1) = f(n) – 8. If f(1) = 100, what is f(6)?
2a2b3 and -4a2b3 are like terms. a. True b. False