Use the given graph of a rational function r(x) to solve the problem.Find r(-2). 
A. 0
B. -1
C. 1
D. 3
Answer: A
Mathematics
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Write the equation for the plane.The plane through the point A(5, 5, 9) perpendicular to the vector from the origin to A.
A. 5x + 5y + 9z = 131
B. 5x + 5y + 9z = 19
C. 5x + 5y + 9z = 
D. 5x + 5y + 9z = -131
Mathematics
Solve the problem.A tourist in France wants to visit 11 different cities. How many different routes are possible?
A. 11 B. 3,628,800 C. 121 D. 39,916,800
Mathematics
Match the system of equations with one of the graphs.49x2 + 25y2 = 1225y - x = 7
A. 
B. 
C. 
D. 
Mathematics
The graph of a one-to-one function f is given. Draw the graph of the inverse function f-1 as a dashed line or curve.f(x) = 
A. 
B. Function is its own inverse
Mathematics