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

help will give brainliest

Which of the following positions used for venipuncture may cause harm to 5 points the patient? Patient sitting, phlebotomist sitting. Patient sitting; phlebotom

What items did Lincoln outline in a speech given on April 11, 1865?

Jessie has been training for a half-marathon. Jesse trains on a track where each lap is 1/4 of a mile. If Jesse ran 3 1/7 miles, how many laps did she run?

Що означає слово mean ?

Two forces of 8N and 10N CANNOT give a resultant of a. 1 N b. 2 N c. 9 N d. 18 N

What things do you typically do every week? Write five sentences describing what you do every week. Only choose from these verbs to make your sentences: ayudar

When a car uses a gallon of gas, how much carbon dioxide is emitted into the environment? I give branlyest

Hi can some one please help me !!!

g Write a function named find_min that takes two numbers as arguments and returns the minimum of the two. (Behavior is not specified for which to return, if the