Factor the polynomial as a perfect square or state that it is irreducible.x2 - 20x + 400
A. (x - 20)2
B. (x + 20)(x - 20)
C. irreducible
D. (x + 20)2
Answer: C
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Consider below the branching tree diagram based on the number per 3000 American adults. 
LetT = the set of Americans who like classical music R = the set of Republicans who like classical music D = the set of Democrats who like classical music I = the set of Independents who like classical musicDetermine whether the statement is true or false.Let M = the set of Independent men who like classical music W = the set of Independent women who like classical musicThe set of elements in M and W combined is equal to set I.
A. True B. False
Solve the problem.If u = 
, v = 
, and w = 
, evaluate u ? w + v ? w.
A. -34 B. -43 C. -32 D. -39
Find the midpoint of the line segment joining the two points.(1, 6) and (-9, -4)
A. 
B. 
C. 
D. 
Complete the ordered pair so that it is a solution of the given linear equation.7x + y = -15(-3, ), (0, ), (1, )
A. (-3, 6), (0, 0), (1, -22) B. (-3, 6), (0, -27), (1, -22) C. (-3, -3), (0, -15), (1, -22) D. (-3, 6), (0, -15), (1, -22)