Match the correct function to the graph.

A. y = 
B. y = x - 1
C. y = 
D. y = 


Answer: A

Mathematics

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Find all the second order partial derivatives of the given function.f(x, y) = xy2 + yex2 + 5

A.  = 2yex2(1 + 2x2);  = 2x;   =  = 2y + 2xex2
B.  = 2yex2 = 2x;   =  = 2y + 2xex2
C.  = yex2(1 + 2x2);  = x;   =  = y + xex2
D.  = 2yex2 = 2x;   =  = 2xex2

Mathematics

Determine what percent of the figure is shaded.

A. 70% B. 85% C. 12.5% D. 87.5%

Mathematics

Solve the problem.Suppose the cost of producing x items is given by C(x) = 4800 - x3 and the revenue made on the sale of x items is R(x) = 400x - 12x2. Find the number of items which serves as a break-even point.

A. 120 items B. 12 items C. 6 items D. 36 items

Mathematics

Solve.Bathing suits are often on sale in July. The regular price of one suit is $19. With a 10% discount, what is the sale price of the suit?

A. $17.10 B. $1.90 C. $18.10 D. $16.10

Mathematics