Given the following equation, set y = 0 and solve the resulting equation.
A. 
B. 
C. 
D. 
E. 
Answer: D
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Solve the problem.An audio speaker that weighs 50 pounds hangs from the ceiling of a restaurant from two cables as shown in the figure. To two decimal places, what is the tension in the two cables? 
A. Tension in right cable: 35.90 lb; tension in left cable: 41.59 lb B. Tension in right cable: 35.90 lb; tension in left cable: 14.10 lb C. Tension in right cable: 14.10 lb; tension in left cable: 41.59 lb D. Tension in right cable: 41.59 lb; tension in left cable: 35.90 lb
Use the vertical line test to determine whether the graph is a function.
A. Function B. Not a function
Solve the problem.Total profit P is defined as total revenue R minus total cost C, and is given by the function 
Find the total profit P(x) if 
and 
A. P(x) = 0.3x2 + 210x - 8000 B. P(x) = 0.7x2 + 210x + 8000 C. P(x) = -0.7x2 - 210x - 8000 D. P(x) = -0.7x2 + 210x - 8000
Graph the function.Use the graph of log2x to obtain the graph of f(x) = - 
log2x.
A. 
B. 
C. 
D. 