haliahkealoha1 haliahkealoha1
  • 04-01-2021
  • Mathematics
contestada

Find C.
Round to the nearest tenth.
90 ft
55 ft
A
В
50 ft
C = [? ]°
YLaw of Cosines: c2 = a+ b2 - 2ab cos C

Find C Round to the nearest tenth 90 ft 55 ft A В 50 ft C YLaw of Cosines c2 a b2 2ab cos C class=

Respuesta :

sqdancefan
sqdancefan sqdancefan
  • 04-01-2021

9514 1404 393

Answer:

  29.4°

Step-by-step explanation:

The equation can be rearranged to give C directly.

  C = arccos((a^2 +b^2 -c^2)/(2ab))

  C = arccos((90^2 +55^2 -50^2)/(2·90·55))

  C = arccos(8625/9900) ≈ 29.4002°

  C ≈ 29.4°

Ver imagen sqdancefan
Answer Link

Otras preguntas

Consider a basket of consumer goods that costs $80 in the United States. The same basket of goods costs GHS 24 in Ghana.Holding constant the cost of the basket
What is the coupon rate for a bond with 3 years until maturity, a price of $1,053.46, and a yield to maturity of 6%
Debate is an important step in the lawmaking process because it: A. lets lawmakers voice their opinions about a bill. B. allows all citizens to vote on new fed
Please help!! Need help ASAP!!
Is CO a acidic or basic oxide and why
Choose the correct answer to each question. 1. ¿Quiénes son? a. Teresa 2. ¿Quién es la amiga de José? b. inteligente y bonita 3. ¿De dónde son ellos? c. puertor
a. Line is defined as a a geometric shape that is open and moves from one point to another. b. a slowly curving path along a plane. a path through space. d. The
the table represents a function:x. f(x)-5. 4-1. 06. -19. -3What is the value of f(-1)?​
Why do you think Chief Joseph's short speech become so admired and famous?
find the error in the statement below if height _variable >59;print ("you can ride this roller coaster.")​