Factor the trinomials that are perfect-square trinomials. If it is not a perfect square, respond "not a perfect square."b2 - 28b + 196
A. (b + 14)(b - 14)
B. (b - 14)2
C. (b + 14)2
D. not a perfect square
Answer: B
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Evaluate the expression.
A. 0
B. 
C. 8
D. 1
Find the values of x for which the given function is concave up, the values of x for which the function is concave down, and any points of inflection.y = -2x2 - 4x - 5
A. Concave up for all x, no points of inflection B. Concave down for all x, no points of inflection C. Concave down for x < -1, concave up for x > -1, point of inflection at (-1, -3) D. Concave up for x < -1, concave down for x > -1, point of inflection at (-1, -3)
Find an antiderivative of the given function.cos ?x + 7 sin 
A. 
sin ?x - 49 cos 
B. -sin ?x - 49 cos 
C. 
sin ?x - cos 
D. -? sin ?x + cos 
Solve the problem.Ron throws a ball straight up with an initial speed of 70 feet per second from a height of 5 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 = 0, y = -16t2 + 70t + 5 4.445 sec, 2.188 sec, 81.563 feet B. x = 0, y = -16t2 + 70t + 5 8.605 sec, 2.188 sec, 597.255 feet C. x = 0, y = -16t2 + 70t + 5 8.891 sec, 2.188 sec, 76.563 feet D. x = 0, y = -16t2 + 70t + 5 4.302 sec, 2.188 sec, 5.025 feet