Solve the following application involving ordered pairs. State your answer as an ordered pair and in words.A plumber charges a base fee of $29 plus $38 per hour of labor. The total cost C for a job that requires t hours of labor is modeled by the following equation: 
If Malia has budgeted $409 for a job, how many hours of labor can she afford?
A. (17, 409); If Malia has budgeted $409, she can afford 17 hours of labor.
B. (10, 409); If Malia has budgeted $409, she can afford 10 hours of labor.
C. (1, 409); If Malia has budgeted $409, she can afford 1 hour of labor.
D. (21, 409); If Malia has budgeted $409, she can afford 21 hours of labor.
Answer: B
Mathematics
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Use integration by parts to establish a reduction formula for the integral.
A. 
= n xn-1 e- x2 + 2n 
B. 
= - 
xn e- x2 + 
C. 
= - 
xn-1 e- x2 + 
D. 
= - 2xn-1 e- x2 - 2(n - 1) 
Mathematics
Find the Cartesian coordinates of the given point.
A. (-6, -6
)
B. (-6
, -6)
C. (6
, -6)
D. (6, -6
)
Mathematics
Complete.10 pt = cups
A. 5 B. 40 C. 80 D. 20
Mathematics
Solve by the substitution method.0.3x + 0.6y = 5.40.4x - 0.1y = 0.9
A. {(7, 4)} B. ? C. {(x, y)| 0.3x + 0.6y = 5.4} D. {(4, 7)}
Mathematics