Evaluate by using polar coordinates.
A. 
B. 
C. 
D. 
Answer: A
Mathematics
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A function is a correspondence between two sets X and Y that assigns to each element x of set X only _____ element(s) y of set Y.
A. three B. two C. one
Mathematics
Find all values of the variable for which the rational expression is undefined.
A. -8, 8 B. -5 C. -5, 7 D. -7, 5
Mathematics
Solve the equation using the quadratic formula. Simplify irrational solutions, if possible.x2 + 7x + 3 = 0
A. 
B. 
C. 
D. 
Mathematics
Solve the following system of equations by graphing. Write the solution as an ordered pair or state that the system has no solution or infinitely many solutions.x = -2y = 2
A. (2, -2) B. infinitely many solutions C. no solution D. (-2, 2)
Mathematics