Solve the system of equations.4x + 3y + 3z = 4-8x - 6y - 6z = -86x + 12y + 9z = 4
A. ?
B. 
C. 
D. {(x, y, z) ? 4x + 3y + 3z = 4}
Answer: D
Mathematics
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Graph the inverse function.y = sec-1 2x
A. 
B. 
C. 
D. 
Mathematics
Determine all critical points for the function.f(x) = (x - 6)3
A. x = 6 B. x = 6 and x = 3 C. x = 0, x = 6, and x = 3 D. x = 0 and x = 6
Mathematics
Use rational equations to solve the problems.A jet plane traveling at a constant speed goes 1200 miles with the wind, then turns around and travels for 1000 miles against the wind. If the speed of the wind is 50 mph and the total flight took 4 hours, find the speed of the plane in still air.
A. 435 mph B. 605 mph C. 525 mph D. 550 mph
Mathematics
Graph the pair of parametric equations in the rectangular coordinate system.x = 2t, y = t + 5; -2 ? t ? 3 
A. 
B. 
C. 
D. 
Mathematics