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

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

Write a complete reaction of succinic acid and acetic anhydride

Write a complete reaction of succinic acid and acetic anhydride

What are the operation sines that make this statement correct? 3_5_7_18_3=14

what is force ?is it desirable or undesirable?

which type of gas is filled in lays pack and why?

When MgCO3(s) is strongly heated, it produces solid MgO as gaseous CO2 is driven off.Does the oxidation number of carbon change upon the formation of CO2?

What are the characteristics of mass culture?

Compute the odds in favor of rolling a sum of 10 in a single roll of two fair dice

Write a complete reaction of succinic acid and acetic anhydride

which of the following expressions does not equal: the sixth root of 81x^4y^8 a. (3xy^2)^2/3 b. (3x)^2/3y^4/3 c. (3x^2y^4)^1/3 d. cube root of 9x^2y^4