Use a quantifier to make the following true or false, as indicated, where x is a natural number.2x + 1 = 5 - x (make true)
A. No natural number x exists such that 2x + 1 = 5 - x.
B. Only two natural numbers x exist such that 2x + 1 = 5 - x.
C. For every natural number x, 2x + 1 = 5 - x.
D. There exists a natural number x such that 2x + 1 = 5 - x.
Answer: D
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A. Yes; degree 5 B. Yes; degree 10 C. Yes; degree 9 D. No; the last term has no variable
Solve the problem.What is the domain of the function f(x) = 
?
A. (-?, 2) ? (2, ?) B. (-?, -2) ? (2, ?) C. (-?, 2) D. (-?, -2] ? [2, ?)
Use the graph of the rational function f(x) to complete the statement.As x?-2-, f(x)? 
. 
A. -? B. 0 C. +? D. 2
Solve.Dr. Wong can see 9 patients in 2 hours. At this rate, how long would it take her to see 36 patients?
A. 18 hours B. 162 hours C. 7 hours D. 8 hours