10
QuizMultiple Choice

Law of Cosines — Quiz

Question 10 • Precalculus

Which equation can be used to solve for x in the triangle?

Answer
A
x is equal to 4 point 7 plus 4 point 0 plus 2 4 point 7 4 point 0 cosine 41 degrees
B
x is equal to 4 point 7 plus 4 point 0 minus 2 4 point 7 4 point 0 cosine 41 degrees
C
x squared is equal to 4 point 7 squared plus 4 point 0 squared plus 2 4 point 7 4 point 0 cosine 41 degrees
D
x squared is equal to 4 point 7 squared plus 4 point 0 squared minus 2 4 point 7 4 point 0 cosine 41 degrees