Select the angle that correctly completes the law of cosines for this triangle. 52 + 132 – 2(5)(13)cos _ = 122
67°
13
5
23°
90°
12
A. 180°
B. 23°
C. 90°
D. 67°

Given tan∅=4/3 and π< ∅< (3π)/2; find cos2∅ a. -24/25 b. 24/25 c. -24/7 d. -7/25

Solve the system of equations. y= 2x y= x^2 - 15

Two students were asked if they liked to read. is this a good example of a statistical question? why or why not? a yes, this is a good statistical question because a variety of answers are given. b yes, this is a good statistical question because there are not a variety of answers that could be given. c no, this is not a good statistical question because there are not a variety of answers that could be given. no, this is not a good statistical question because there are a variety of answers that could be given