Find the function value, provided it exists. f(x) = 
; f(-4)
A. - 
B. 
C. - 
D. - 
Answer: C
Mathematics
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Solve the problems.If a spring stretches 8 meters when a 3-kilogram weight is attached to it, how much will it stretch when a 21-kilogram weight is attached to it?
A. 56 meters B. 58 meters C. 55 meters D. 59 meters
Mathematics
Solve the problem.Graph f(t) = csc t in [-2?, 2?, ?/2] by [-4, 4, 1] using dot mode. Use the graph to identify the domain and period of f.
A. t ? ?n, where n is an integer; 2?
B. t ? ?n, where n is an integer; ?
C. t ? 
+ ?n, where n is an integer; 2?
D. t ? 
+ ?n, where n is an integer; ?
Mathematics
Simplify the radical expression. Assume all variables represent positive real numbers.(
+ 3)(
- 3)
A. 5
B. -1
C. 17
D. 8 - 2
Mathematics
Solve the equation.5(2x - 2) = 9(x + 4)
A. {46} B. {-26} C. {31} D. {-46}
Mathematics