amyatheplug09 amyatheplug09
  • 17-01-2021
  • Mathematics
contestada

Find C.
Round to the nearest tenth.
с
17 ft
8 ft
B
А
16 ft
C = [ ? ]
Law of Cosines : c2 = a2 + b2 - 2ab cos C
Enter

Find C Round to the nearest tenth с 17 ft 8 ft B А 16 ft C Law of Cosines c2 a2 b2 2ab cos C Enter class=

Respuesta :

SkiffMackinaw SkiffMackinaw
  • 17-01-2021

Answer:

[tex]C=69.1^{\circ}[/tex]

Step-by-step explanation:

The Law of Cosines is given as:

[tex]c^2=a^2+b^2-2ab\cos C[/tex].

Plugging in given values, we get:

[tex]16^2=8^2+17^2-2\cdot 8\cdot 17\cdot \cos C,\\\cos C=\frac{-97}{-272},\\C=\arccos(\frac{97}{272}),\\C=\fbox{$69.1^{\circ}$}[/tex].

Answer Link

Otras preguntas

The table below shows that 1 day equals 24 hours. notice that 12 hours is one-half of that. use the table to help you determine how many days are equal to 30 ho
Who created utopianism
What two variables is acceleration dependent on?
For sediment to be into rock what processes must take place
On a 15 scale drawing of a car, one part is 8 inches long. How long will the actual car part be?
Whats 2.48 divided by 0.4?
What is the probability against a spinners landing o a green section if the spinner had 15 sections & 3 of them are green answer in percentage please is it
Pretend you own a company that sells items over the Internet. You decide that shipping costs will be based on the total weight of a customer's purchase. Write a
Which cell type below can specialize into any other type of cell in the body? a.)a fertilized egg cellb.)a smooth muscle cellc.)a nervous celld.)a bone cell?
In scientific notation, 330 is written: 3.3 x (10^2) 33 x (10^2) 3.3 x (10^3) 3.3 x (10^4)