Solve the problem.A company's cost for operating two warehouses is C(x, y) = 4x3y dollars, where x is the number of units in warehouse A and y is the number in B. Find the average cost to store a unit if A has 1 to 2 units, and B has 3 to 5 units.
A. $120
B. $90
C. $60
D. $150
Answer: C
Mathematics
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Solve. x + 4y + 3z = -5 2y + 3z = -8 z = -2
A. (-2, 5, -1) B. (5, -2, -1) C. (-2, -1, 5) D. (5, -1, -2)
Mathematics
Solve the equation analytically.4x + 19 = 3x + 5
A. {-14} B. {14} C. {-24} D. {24}
Mathematics
A triangle with vertices at (x1, y1), (x2, y2), and (x3, y3) has area equal to the absolute value of D, where 
. Use this information to solve the problem.Use D to find the area of the triangle with vertices at P, Q, and R. P(0, -2), Q(0, 4), R(5, -1)
A. 15 B. 4 C. 0 D. 30
Mathematics
Find the derivative.y = ex ln x, x > 0
A. 
B. 
C. 
D. ex ln x
Mathematics