Find the general term, an, of the given arithmetic sequence.2, 6, 10, 14, 18, . . .
A. an = 4n - 1
B. an = 2n - 4
C. an = 2(2n - 1)
D. an = 2(4)n-1
Answer: C
Mathematics
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Find an equation of a parabola that satisfies the given conditions.Vertex (5, -4), focus (8, -4)
A. (y + 4) =
B. x - 5 = 3(y + 4)2
C. (x - 5) = (y + 4)2
D. (x - 5) =
Mathematics
Estimate the interval(s) on which the function is increasing and decreasing.f(x) = -3x2 - 5x + 4
A. increasing on (-?, -2.26); decreasing on (-2.26, ?) B. increasing on (-2.26, -0.83); decreasing on (-0.83, -2.26, ?) C. increasing on (-?, -0.83); decreasing on (-0.83, ?) D. decreasing on (-?, -0.83); increasing on (-0.83, ?)
Mathematics
Factor the polynomial completely using grouping.6z2 - 5z - 6
A. (6z + 2)(z - 3) B. (3z - 2)(2z + 3) C. (3z + 2)(2z - 3) D. prime
Mathematics
Graph.f(x) =
A.
B.
C.
D.
Mathematics