Solve the system.4x - 2y - 4z = -3-5x + 6y - 6z = 88x - 4y - 8z = 5
A. (-3, 8, 5)
B. (2, 2, -1)
C. Infinitely many solutions
D. No solution
Answer: D
Mathematics
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Find the average value over the given interval.f(x) = 8 sin x; [0, ?]
A. 
B. 
C. 
D. 
Mathematics
Solve by using the square root property.(x + 4)2 - 6 = 0
A. -2 + 
, -2 - 
B. 2, 10
C. 4 + 
, 4 - 
D. -4 + 
, -4 - 
Mathematics
Graph the system of inequalities.3x - 2y ? 6 x - 1 ? 0
A. 
B. 
C. 
D. 
Mathematics
Solve the problem.The maximum distance d in kilometers that you can see from a height h in meters is given by the formula 
How far can you see from the top of a 
building? (Round to the nearest tenth of a kilometer.)
A. 19.9 km B. 739 km C. 69.6 km D. 37.2 km
Mathematics