shierregarland shierregarland
  • 10-08-2021
  • Mathematics
contestada

Find the missing side or angle.
Round to the nearest tenth.
b=15 a=30 c=29 a=[?]. Acellus plz

Find the missing side or angle Round to the nearest tenth b15 a30 c29 a Acellus plz class=

Respuesta :

jimrgrant1 jimrgrant1
  • 10-08-2021

Answer:

∠ A ≈ 79.0°

Step-by-step explanation:

Using the Cosine rule to find the angle

cosA = [tex]\frac{b^2+c^2-a^2}{2bc}[/tex]

        = [tex]\frac{15^2+29^2-30^2}{2(15)(29)}[/tex]

        = [tex]\frac{225+841-900}{870}[/tex]

        = [tex]\frac{166}{870}[/tex] , then

A = [tex]cos^{-1}[/tex] ([tex]\frac{166}{870}[/tex] ) ≈ 79.0° ( to the nearest tenth )

Answer Link

Otras preguntas

How did that affect the development of monotheism in the Roman Empire
Which of the following languages LEAST influenced the development of modern English? Saxon Norse Italian German French
Help!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
What is the complete factorization of the polynomial below? x^3+4x^2+16x+64 A. (x-4)(x+4i)(x+4i) B. (x-4)(x+4i)(x-4i) C. (x+4)(x+4i)(x+4i) D. (x+4)(x+4i)(x-4i)
The letter S in the acronym SMART represents the word
Look at the figure find the value of x for which l || m
Who wants 12 points answeer it and earn it!
Now most persons in this category supply themselves with information, as peddlers do with goods, for the benefit of others, and lay up stores in order to diffus
What is the volume of the cylinder below?
Why has popular culture tended to be more destructive of the environment than folk culture? Popular culture's transmission tends to use more resources. Folk