A point on the terminal side of angle ? is given. Find the exact value of the indicated trigonometric function.(15, 20)Find cos ?.
A. 
B. 
C. 
D. 
Answer: A
Mathematics
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A function of x is depicted in the graph. Find all x-values that satisfy the given condition.f(x) = 1
A. 0 B. -2 C. 2 D. -1
Mathematics
Find the probability.When a single card is drawn from an ordinary 52-card deck, find the probability of getting a red card.
A. 
B. 
C. 2
D. 
Mathematics
Solve the problem.April shoots an arrow upward into the air at a speed of 64 feet per second from a platform that is 30 feet high. The height of the arrow is given by the function h(t) = -16t2 + 64t + 30, where t is the time is seconds. What is the maximum height of the arrow?
A. 26 ft B. 30 ft C. 64 ft D. 94 ft
Mathematics
Find an equation of the line.
A. y = - 
x
B. y = 
x
C. y = 
x
D. y = - 
x
Mathematics