Evaluate the sum.
A. -25
B. 53
C. 5
D. -10
Answer: C
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At the given point, find the slope of the curve, the line that is tangent to the curve, or the line that is normal to the curve, as requested.4x2y - ? cos y = 5?, slope at (1, ?)
A. - 
B. -2?
C. 0
D. ?
Integrate the function.
A. 9 cos-1 
B. 
sin-1 
C. cos-1 
D. sin-1 
Solve the problem.To remodel a bathroom, a contractor charges $25 per hour plus material costs, which amount to $3850. Therefore, the total cost to remodel the bathroom is given by 
where x is the number of hours the contractor works. Find a formula for 
What does 
compute?
A. f -1(x) = 
- 3850; This computes the number of hours worked if the total cost is x dollars.
B. f -1(x) = 
- 3850; This computes the total cost if the contractor works x hours.
C. f -1(x) = - 154; This computes the total cost if the contractor works x hours.
D. f -1(x) = 
- 154; This computes the number of hours worked if the total cost is x dollars.
Write the expression in i notation.
A. -i
B. -18i
C. ±18
D. 18i