Use the law of cosines to find the value of cose. Round your answer to two decimal places.

5.7
102
9.8

A. 0.84
B. 0.35
C. 0.22
D. -1.04

Point a is located at (0, 4), and point c is located at (−3, 5). find the x value for the point b that is located one fourth the distance from point a to point c. −0.25 −0.5 −0.75 −1

Answer question above and explain each step : )

Which of the following represents a number squared is equal to twenty more than nine times that number ? a) x squared = 9x + 20 b) x squared = 20x + 9 c) x squared > 9 + 20x d) x squared = 9 + x + 20