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

What is the relationship between organelles and homeostasis?
how to find the definite interval
a rectangle is twice as long as it is wide. if the width is a what is the length of a diagonal please .explain please!!!!!!!!!!!
A gas has a volume of 590 mL at a temperature of -55.0°C what volume will the gas occupy at 30.0°C? Show your work.
Hellppp! I’ll mark you the brainiest !!!
50 points please do this In your OWN WORDS DO NOT COPY FROM SOMEWHERE ELSE! In a heat engine, if 1000j if heat enters the system and the piston does 500j of wor
The number of trucks registered in a city increases by 10% each year. initially, there were 100 trucks registered. there were 110 trucks registered at the end o
A person who takes part in the action of a story is called a(n) _____.
approximately how close is russia to the united states?
A substance continually produced in our sales that may cause damage to DNA and other important cell structures over time is known as a