Evaluate.cos
A. 
B. 
C. 
D. 
Answer: C
Mathematics
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Solve the problem.Suppose you pay $3.00 to roll a fair die with the understanding that you will get back $5.00 for rolling a 4 or a 6, nothing otherwise. What is your expected net winnings?
A. $5.00 B. -$1.33 C. $3.00 D. -$3.00
Mathematics
Solve the equation.(x2 - 2x)2 - 23(x2 - 2x) + 120 = 0
A. {5, 4} B. {- 3, - 2, 5, 4} C. {- 3, - 2, 15, 8, 5, 4} D. {15, 8}
Mathematics
Find the vertex and axis of symmetry of the parabola.y = -2x2 - 8x - 4
A. (-2, 4); x = -2 B. (-2, -4); x = -2 C. (2, 4); x = 2 D. (0, -4); x = 0
Mathematics
Use the quadratic formula to solve the equation. Simplify any radicals.8x2 = 5x - 8
A. 
B. 
C. 
D. ?
Mathematics