Solve the problem.A textile company has specific dyeing and drying times for its different cloths. A roll of Cloth A requires 55 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 2080 minutes of dyeing time and 1220 minutes of drying time for the week. How many rolls of each cloth can be dyed and dried?
A. 2 rolls of Cloth A, 44 rolls of Cloth B
B. 5 rolls of Cloth A, 32 rolls of Cloth B
C. 13 rolls of Cloth A, 35 rolls of Cloth B
D. 16 rolls of Cloth A, 20 rolls of Cloth B
Answer: D
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At what points is the given function continuous?f(x, y, z) = yz cos
A. All (x, y, z)
B. All (x, y, z) such that x ? 0
C. All (x, y, z) such that 0 ? ? 2?
D. All (x, y, z) such that x ?
Evaluate the expression.C(13, 8)
A. 154,440 B. 240 C. 25,945,920 D. 1287
Rewrite the equation in standard form. Find the center and radius of the circle.x2 + y2 + 6x - 4y - 48 = 0
A. (x + 6)2 + (y - 4)2 = 4 center (-6, 4), r = 2 B. (x - 6)2 + (y + 4)2 = 4 center (-6, 4), r = 2 C. (x + 6)2 + (y - 4)2 = 4 center (6, -4), r = 2 D. (x - 6)2 + (y + 4)2 = 4 center (6, -4), r = 2
Solve.x + =
A.
B.
C.
D. {1}