jjsmoh2
jjsmoh2 jjsmoh2
  • 02-02-2021
  • Mathematics
contestada

PLEASE HELP ASAP I WILL GIVE BRAINLIEST!!!
Find the value of x.
Round to the nearest tenth.
х
3
120°
10
x = [?]
Law of Cosines: c2 = a2 + b2 - 2ab cos C
Enter

PLEASE HELP ASAP I WILL GIVE BRAINLIEST Find the value of x Round to the nearest tenth х 3 120 10 x Law of Cosines c2 a2 b2 2ab cos C Enter class=

Respuesta :

clarch19
clarch19 clarch19
  • 03-02-2021

Answer:

x = 11.8

Step-by-step explanation:

x² = 3² + 10² - 2(3)(10) · cos120°

x² = 109 - (60 · cos120°)

x² = 109 - (-30)

x² = 139

x = [tex]\sqrt{139}[/tex] ≈ 11.8

Answer Link

Otras preguntas

What does this spell? A. buy B. Mut C. But D. and
The potential benefit that is given up when one alternative is selected over another is called
Which best explains why president wilson chooses the word extraordinary?
The function f given by f(x)=2x^3-3x^2-12x has a relative minimum at x= ?
why would cells lining a tube-like structure such as the trachea need to be ciliated?
Find the total area of a cylinder whose radius is 2 cm and height is 4 cm
Write and graph an equation to represent the situation. You put 10 gallons of gasoline​ (x) in your car. You know that this amount of gasoline will allow you t
What were the expectations if you were a baker in ancient Egypt???? PLS PLS PLS HELP IM DESPERATE
Which expression is equivalent to t^2-36
Which expression is equivalent to t^2-36