Use the quadratic formula to solve the quadratic equation.x2 + x + 4 = 0
A. 1 ± 
B. 
C. no real solution
D. 
Answer: C
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Add.-8 + 14 + (-2)
A. 8 B. 4 C. 20 D. 24
Solve the problem.To remodel a bathroom, a contractor charges $30 per hour plus material costs, which amount to $4770. 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) = 
- 4770; This computes the number of hours worked if the total cost is x dollars.
B. f -1(x) = 
- 159; This computes the total cost if the contractor works x hours.
C. f -1(x) = 
- 159; This computes the number of hours worked if the total cost is x dollars.
D. f -1(x) = 
- 4770; This computes the total cost if the contractor works x hours.
Solve the problem.Given that P(A) = 0.36, P(B) = 0.33, and P(A ? B) = 0.16, find P(A ? B).
A. 0.37 B. 0.69 C. 0.53 D. 0.85
Evaluate the expression using the given value of the variables.
for x = -10, y = -6
A. 9 B. 7 C. 3 D. -7