Solve the equation.5x(x + 2) = (4x - 6)(x + 2)
A. 6
B. -6
C. 2, 6
D. -2, -6
Answer: D
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The graph below shows the percentage of students enrolled in the College of Engineering at State University. Use the graph to answer the question.
If f(x) = 20%, what year is represented by x?
A. 1985 B. 1975 C. 1990 D. 1980
Use the theoretical probability formula to solve the problem. Express the probability as a fraction reduced to lowest terms.A single die is rolled twice. The set of 36 equally likely outcomes is {(1, 1), (1, 2), (1, 3), (1, 4), (1, 5), (1, 6), (2, 1), (2, 2), (2, 3), (2, 4), (2, 5), (2, 6), (3, 1), (3, 2), (3, 3), (3, 4), (3, 5), (3, 6), (4, 1), (4, 2), (4, 3), (4, 4), (4, 5), (4, 6), (5, 1), 
(5, 3), (5, 4), (5, 5), (5, 6), (6, 1), (6, 2), (6, 3), (6, 4), (6, 5), (6, 6),}. Find the probability of getting two numbers whose sum is less than 13.
A. 1
B. 0
C. 
D. 
Find the acceleration vector in terms of ur and u?.r = 2 cos 4t and ? = 3t
A. a = (-50 sin 4t)ur - 48 cos 4tu? B. a = (-50 cos 3t)ur - 48 sin 3tu? C. a = (-50 cos 4t)ur - 48 sin 4tu? D. a = (-50 cos 4t)ur + 48 sin 4tu?
Find the axis of symmetry of the given function.f(x) = x2 - 13x + 12
A. x = 
B. x = 13
C. x = - 
D. x = 