Find all values of ?, if ? is in the interval [0, 360°) and has the given function value.cos ? = - 
A. 60° and 120°
B. 210° and 330°
C. 150° and 210°
D. 60° and 300°
Answer: C
Mathematics
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Use the relative frequency method to estimate the probability. Round your answer to 2 decimal places when necessary.Every week, Joe plays chess with his father. Of the last 50 games, Joe has won 63% of the games. What is the probability that Joe will win the next game?
A. 0.63 B. 0.063 C. 1 D. 0.5
Mathematics
Solve. Write the solution set using set-builder notation and using interval notation. Graph the solution set. x + 1 < 12
A. {xx ? 11}; [11, ?)
B. {xx < 11}; (-?, 11)
C. {xx ? 11}; (-?, 11]
D. {xx > 11}; (11, ?)
Mathematics
Graph the inequality.y ? 2x
A.
B.
C.
D.
Mathematics
Solve the formula for the specified variable.7x + 10y = 19 for y
A. y = x +
B. y = -x +
C. y = 7x - 19
D. - 7x - 10y = -19
Mathematics