Solve the inequality and graph the solution on the real number line.
?
?
A. 
B.
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C.
?
D.
E.
Answer: A
Mathematics
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Use an identity to write the expression as a single trigonometric function or as a single number.
A. 
B. 
C. 
D. 
Mathematics
For the quadratic function, tell whether the graph opens up or down and whether the graph is wider, narrower, or the same shape as the graph of 
f(x) = x2 + 2
A. Down; same B. Up; narrower C. Up; wider D. Up; same
Mathematics
Let U = {q, r, s, t, u, v, w, x, y, z}, A = {q, s, u, w, y}, B = {q, s, y, z}, and C = {v, w, x, y, z}. Find the indicated set.A ? 
A. {t, v, x} B. {q, s, t, u, v, w, x, y} C. {r, s, t, u, v, w, x, z} D. {u, w}
Mathematics
Tell whether the relation is a function.
A. Function B. Not a function
Mathematics