Evaluate the expression using the given values.
x = 5, y = 5
A. -65
B. -5
C. 5
D. 65
Answer: C
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Solve the problem.Prove that S is a subset of T, whereU = [0, 1, 2, 3, 4, 5] S = {x ? U: x is a solution to x2 = 16 }T = {x ? U: x is a solution to x2 - 4x = 0}
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Give the exact value.sec 210°
A. 
B. - 
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D. - 
Solve the problem.A baseball pitcher throws a baseball with an initial speed of 127 feet per second at an angle of 20° to the horizontal. The ball leaves the pitcher's hand at a height of 4 feet. Find parametric equations that describe the motion of the ball as a function of time. How long is the ball in the air? When is the ball at its maximum height? What is the maximum height of the ball?
A. x = 119.34t, y = -16t2 + 43.43t + 4 5.238 sec, 1.357 sec, 239.771 feet B. x = 119.34t, y = -16t2 + 43.43t + 4 2.619 sec, 1.357 sec, 3.997 feet C. x = 119.34t, y = -16t2 + 43.43t + 4 5.607 sec, 1.357 sec, 29.471 feet D. x = 119.34t, y = -16t2 + 43.43t + 4 2.804 sec, 1.357 sec, 33.471 feet