Evaluate the following expression using a unit circle.cos 
A. -1
B. - 
C. 
D. - 
Answer: D
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Find a parametrization for the line segment beginning at P1 and ending at P2.P1(0, 0, 0) and P2(-2, 3, 5)
A. x = -2t - 2, y = 3t + 3, z = 5t + 5 B. x = -2t, y = 3t, z = 5t C. x = -2t + 2, y = 3t - 3, z = 5t - 5 D. x = 2t, y = -3t, z = -5t
Solve the problem.A textile company has specific dyeing and drying times for its different cloths. A roll of Cloth A requires 50 minutes of dyeing time and 45 minutes of drying time. A roll of Cloth B requires 60 minutes of dyeing time and 25 minutes of drying time. The production division allocates 2360 minutes of dyeing time and 1660 minutes of drying time for the week. How many rolls of each cloth can be dyed and dried?
A. 11 rolls of Cloth A, 40 rolls of Cloth B B. 18 rolls of Cloth A, 28 rolls of Cloth B C. 28 rolls of Cloth A, 16 rolls of Cloth B D. 21 rolls of Cloth A, 31 rolls of Cloth B
Convert the units.48 quarts = 
gallons
A. 12 B. 96 C. 192 D. 24
Consider only the discriminant, b2 - 4ac, to determine whether one real-number solution, two different real-number solutions, or two different imaginary-number solutions exist.x2 + 12x + 36 = 0
A. Two different real-number solutions B. One real solution C. Two different imaginary-number solutions