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

Explain the meaning of balance of trade.

What is the size of the angle, below?

“Providing everyone with the benefits of modern industry might not be enough, especially as continued technological innovation would require the constant remode

3 erasers cost $4.41. Write a proportion that would solve for the cost of 4 erasers.

The network layer of the ISO/OSI model organize bits into ..........

Describe THREE learning stations based on the following skill theme for locomotion

The number of measles cases has increased by 5.3% since 2000. Express your answer rounded correctly to the nearest hundredth. Stated another way, the number of

When does crossing over occur? A. Before Meiosis B. Meiosis 2 C. Meiosis 1 D. After Meiosis

a) Briefly, describe the advantages and disadvantages of any two (2) types of maps that can be used to measure change spatial change over time?

The cost of renting a car is $47 /week plus $0.25 /mile traveled during that week. An equation to represent the cost would be y=47+0.25x , where x is the n