Solve the problem.It costs $40 per hour plus a flat fee of $22 for a plumber to make a house call. Let x represent the number of hours and y represent the total cost in dollars. Write an equation in slope-intercept form that represents this situation.
A. y = 40x + 22
B. y = 22x
C. y = 40x
D. y = 22x + 40
Answer: A
Mathematics
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Find the solution set for the equation.
= 10
A. {-6, 4} B. {-6, 0} C. {-8, 0} D. {-8, 2}
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Use integration by parts to find the integral.
dx
A. - 
x(7 - x)3/2 - 
(7 - x)5/2 + C
B. 
x(7 - x)3/2 + 
(7 - x)5/2 + C
C. - 
x(7 - x)3/2 + 
(7 - x)5/2 + C
D. - 
x(7 - x)3/2 - 
(7 - x)5/2 + C
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What is the shortest possible length of the line segment that is cut off by the first quadrant and is tangent to the curve y = 3/x at some point? Select the correct answer.
Mathematics
Find the perimeter of the polygon.
A. 19.7 m B. 18.7 m C. 25.6 m D. 12.8 m
Mathematics