Find the domain of the composite function f?g.f(x) = 5x + 40, g(x) = x + 2
A. (-?, 10) ? (10, ?)
B. (-?, ?)
C. (-?, -8) ? (-8, -2) ? (-2, ?)
D. (-?, -10) ? (-10, ?)
Answer: B
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Which of the following is more probable? A. Flipping a coin 4 times and obtaining at least 3 heads.B. Flipping a coin 5 times and obtaining at least 3 heads.?
A. A B. B C. same D. cannot tell
Provide an appropriate response.The payoff table for three possible courses of action A1, A2, and A3 is given below.pi?A1xi?A2xi?A3xi?.3$70$40$50.2$100$120$110.1$160$140$90.4$80$140$160Which course of action will produce the largest expected value? What is it?
What will be an ideal response?
Find the vertex, focus, and directrix of the parabola. Graph the equation.(y + 2)2 = (x + 2)
A. vertex: (2, 2)
focus: (2.25, 2)
directrix: x = 1.75
B. vertex: (2, 2)
focus: (2, 2.25)
directrix: y = 1.75
C. vertex: (-2, -2)
focus: (-2, -1.75)
directrix: y = -2.25
D. vertex: (-2, -2)
focus: (-1.75, -2)
directrix: x = -2.25
Solve for the variable. Choose the method you feel will work best.5x2 + 8x + 1 = 0
A. x = 
B. x = 
C. x = 
D. x = 