Solve the system of equations.
A. (-4, -1)
B. (4, 1)
C. (4, 1), (-4, -1)
D. No solution
Answer: C
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Solve the problem.Ignoring friction, the time , t (in seconds), required for a block to slide down an inclined plane is given by the formula 
where b is the length of the base in feet and 
per second is the acceleration of gravity. How long does it take a block to slide down an inclined plane with a base of 12 feet at an angle of 
Round your answer to three decimal places.
A. 0.361 sec B. 0.885 sec C. 7.104 sec D. 1.252 sec
Use the graph of the polynomial function f(x) to solve f(x) = 0.
A. -2, 1 B. -2, 1, 8 C. -1, 2 D. -2, 0, 1
Decide whether the relation defines a function.
A. Function B. Not a function
Perform the indicated operation and express in lowest terms.
- 
A. 
B. 
C. 
D. -1