fhdjjskksj fhdjjskksj

03-08-2020
Mathematics

contestada

Find X.
Round to the nearest tenth.

Law of Cosines : c2 = 22 + b2 - 2ab cos C

Find X Round to the nearest tenth Law of Cosines c2 22 b2 2ab cos C class=

Respuesta :

valerieulbrich valerieulbrich

03-08-2020

Answer:

70.5°

Step-by-step explanation:

22² = (20)²+(18)² - 2(20)(18) cos X

484 = 400 + 324 - 720 cos X

-240 = -720 cosx

1/3 = cos X

[tex]cos^{-1}(\frac{1}{3})[/tex] = X

X = 70.52877937

Answer Link

Otras preguntas

why did the church respond with its Catholic reformation

Which of these 1 M solutions will have the highest pH?(1) NaOH (3) HCl(2) CH3OH (4) NaCl

How would you answer these French questions in a descriptive way? 10 points Ton college est comment? Qu’est-ce que tu vas etudier demain? Qu’est-ce qu’il yYour

What historical event helped to spark the Harlem Renaissance and how?

Which groups led the quest for Mexican independence?

Is It Deadly To Mix Bleach, Rubbing Alcohol, And/or Hydrogen Peroxide?

How is a fad diet different than a low calorie diet?

A reaction is most likely to occur when reactant particles collide with (1) proper energy, only (2) proper orientation, only (3) both proper energy and proper o

When a mixture of water, sand, and salt is filtered, what passes throughthe filter paper?(1) water, only(2) water and sand, only(3) water and salt, only(4) wate

Is It Deadly To Mix Bleach, Rubbing Alcohol, And/or Hydrogen Peroxide?