Which of the following is not either the listing method nor set-builder notation method of writing set forms?
?
A. ?A = {3,4,5,6,7}
B. ?B = (3,4)
C. ?A = {x | x is an integer and x< 7}
D. ?B = {x | x is a whole number and x> 5}
E. ?C = {4,5,6,...18}
Answer: E
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Determine all critical points for the function.f(x) = x3 - 6x2 + 2
A. x = 0 and x = 2 B. x = 0 and x = 4 C. x = 0 D. x = -2 and x = 2
A bad investment loses 5% of its value each year. The initial investment was $2,883. ? A: Find a formula that gives the value V, in dollars, of the investment after ?t years. ? B: What is the value of the investment after 7 years? ? C: When will the investment decline to half its original value? ? Round your answers to two decimal places if necessary. ?
What will be an ideal response?
Use the elimination method by addition to find the solution for the following system.
A. x = 1, y = 0
B. x = 0, y = - 
C. x = 5k + 1, y = k, for any real number k.
D. The system is inconsistent.
Use a graphing utility to graph the equation. Use the graph to approximate the values of x that satisfy the inequality.
?
Equation:
?
Inequality:
?
A. ?
B. ?
C. ?
D. ?
E. ?
