Find the integral.
A. 
ln 
+ C
B. 
ln 
+ C
C. 15 ln (5x3 - 8) + C
D. 15 ln 
+ C
Answer: B
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Find the inverse matrix of A.A = 
A. 
B. 
C. 
D. 
Solve the problem.The cost, in dollars, of retaining the services of a computer repairman in Anchorville is given by 
where x is the number of hours worked. Find the slope and y-intercept of the equation and explain what each signifies.
A. 18 signifies the hourly rate, and 66 signifies the overhead charge. B. 66 signifies the hourly rate, and 18 signifies the overhead charge. C. -66 signifies the hourly rate, and 18 signifies the travel cost. D. 84 signifies the cost for an on-site inspection.
Write a formula for a linear function f that models the data exactly.
A. f(x) = -4x + 6 B. f(x) = 4x + 6 C. f(x) = 8x + 22 D. f(x) = -8x + 22
Find the approximate equation of the line that has the given slope and contains the given point. Write the equation in slope-intercept form. Round the constant term to two decimal places if necessary.m = 2.1, (3.5, -8.3)
A. y = 2.1x - 0.95 B. y = 0.48x - 9.97 C. y = -2.1x - 15.65 D. y = 2.1x - 15.65