Find the vertex of the parabola.f(x) = x2 - 8x + 24
A. (0, 24)
B. (4, 24)
C. (0, 8)
D. (4, 8)
Answer: D
Mathematics
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Solve the system of linear inequalities.x + y ? 0 y ? 4x - 5
A. 
B. 
C. 
D. 
Mathematics
Find A-1 if it exists.A = 
A. 
B. 
C. 
D. Does not exist
Mathematics
Solve the equation using the multiplication principle.
= -5
A. -12 B. 0 C. -13 D. 35
Mathematics
Solve the problem.A rectangular field is to be enclosed on four sides with a fence. Fencing costs $4 per foot for two opposite sides, and $5 per foot for the other two sides. Find the dimensions of the field of area 750 ft2 that would be the cheapest to enclose.
A. 34.2 ft @ $4 by 21.9 ft @ $5 B. 24.5 ft @ $4 by 30.6 ft @ $5 C. 30.6 ft @ $4 by 24.5 ft @ $5 D. 21.9 ft @ $4 by 34.2 ft @ $5
Mathematics