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 average of 30, 40, and 80?
A boy can swim 75 feet in 12 seconds. What is his rate to the nearest mile per hour?
What is the average of 30, 40, and 80?
A test cross with an organism with a homozygous recessive genotype results in 50% of the offspring exhibiting the recessive trait. What is the genotype of the t
how do you figure out what is 1/4 of 10.
How many prime numbers are there between 56 and 100?
how do you figure out what is 1/4 of 10.
How do enzymes help to carry out biochemical reactions? A. By decreasing the energy of the reactants B. By increasing the activation energy of the reaction C. B
A block of mass 3 kg slides down a frictionless inclined plane of length 6 m and height 4 m. If the block is released from rest at the top of the incline, what
Which technological development enabled European navigators to determine their location during the Age of Exploration? (1) lateen sail (2) astrolabe (3) cross