The graph of a function f is given. Use the graph to answer the question.How often does the line y = -50 intersect the graph?
A. once
B. twice
C. three times
D. does not intersect
Answer: D
Mathematics
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Simplify.9x - {3[4(4x - 6) - (9x + 8)] + 20}
A. -66x + 28 B. -12x - 28 C. -66x + 68 D. -12x + 76
Mathematics
Solve the inequality. Graph the solution set and write it in interval notation.x + 5 < 12
A. (-?, 17)
B. (-?, 7)
C. (7, ?)
D. (-?, 17]
Mathematics
Rewrite with rational exponents.(
)3
A. 
3
B. (7mn)3/2
C. (7mn)2/3
D. 
Mathematics
Verify that the equation is an identity.cot(? - ?) = - cot ?
What will be an ideal response?
Mathematics