Write interval notation for the given set or graph.
A. (-?, 3]
B. (-?, 3)
C. (3, ?)
D. [3, ?)
Answer: D
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Solve the system of equations by the substitution method. If the system does not have a single ordered pair as a solution, state whether the system is inconsistent or dependent.-5x - 44 = 9y-2x + 3y = -22
A. (2, -6) B. Infinitely many solutions; dependent C. (1, -5) D. (2, -5)
Solve the equation for the specified variable.
= 
for P
A. P = 
B. P = 
C. P = 
D. P = 
Use substitution to determine whether the given number is a zero of the given polynomial.3; f(x) = x4 + 8x2 - 153
A. Yes B. No
Solve the problem.The psychology lab at a college is staffed by 7 male doctoral students, 9 female doctoral students, 10 male undergraduates, and 6 female undergraduates. If a person is selected at random from the group, find the probability that the selected person is an undergraduate or a female.
A. 
B. 
C. 
D. 