Solve the problem.
Let x = 20 and y = 5. Find the pitch of the roof.
A. 
B. 
C. 
D. 
Answer: C
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Solve the problem.You plan to estimate e by evaluating the Maclaurin series for 
at 
How many terms of the series would you have to add to be sure the estimate is good to 2 decimal places?
A. 9 B. 6 C. 7 D. 8
Solve the system of equations using substitution.
A. x = 8 , y = -8; x = 2, y = -2
or (8, -8), (2, -2)
B. x = - 
, y = -2 or 
C. x = -8 , y = - 
; x = -2, y = - 
or 
, 
D. x = - 
, y = -8; x = - 
, y = -2
or 
, 
Simplify. Assume that any variables are positive. 
A. 10
B. 5
C. 5
D. 2
Answer the question.The following table gives the electricity usage (in kilowatt hours) for the Peters family for six months.
What is the average electricity usage for the months February through May?
A. 960.04 kwh B. 959.25 kwh C. 956.232 kwh D. 957.26 kwh