Find the domain of x in the expression.
?
?
A. 
B. 
C. 
D. 
E. 
Answer: A
Mathematics
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Simplify the expression.
+ 
A. 
B. 
C. 
D. 
Mathematics
Find a1, r, an, n, or Sn for the geometric sequence, as instructed.r = -3, n = 4, S4 = 20; Find an.
A. -9 B. -1 C. 27 D. -81
Mathematics
Find the domain and range for the indicated function.f(x) = 5,
g(x) = 5 + 
;
g/f
A. D: x ? 0 R: y ? 1 B. D: x ? -5 R: y ? 0 C. D: x ? 0 R: y ? 1 D. D: x ? 0 R: y ? 5
Mathematics
Solve the problem.A bag contains 8 red marbles, 3 blue marbles, and 1 green marble. What is the probability of choosing a marble that is red or green when one marble is drawn from the bag?
A. 
B. 9
C. 
D. 
Mathematics