Find fx(x, y).f(x, y) = ln xy

A.
B.
C. y ln x
D.

Answer: D

Mathematics

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Determine if the given function y = f(x) is a solution of the accompanying differential equation.Differential equation: xy' + y = Initial condition: y(7) = 2Solution candidate: y =  + 

A. No B. Yes

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Mathematics

Multiply by using the rule for the square of a binomial.2

A. 121x2 + x + 
B. 121x2 + 2x + 
C. 121x2 + 
D. 121x2 + x + 

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Mathematics

Solve the problem.A manufacturer's cost is given by  dollars, where C is the cost and n is the number of parts produced. Find the cost when 216 parts are produced.

A. $2600 B. $6080 C. $1400 D. $67

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Mathematics

Solve the problem.The accompanying figure shows the graph of y = x2 shifted to a new position. Write the equation for the new graph.

A. y = x2 + 4 B. y = (x - 4)2 C. y = x2 - 4 D. y = (x + 4)2

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Mathematics