For the given arithmetic series, what is Sn?a1 = 23, d = -3, and n = 17

A. -68
B. -34
C. -17
D. 6

Answer: C

Mathematics

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Find all the permutations of the set.{E F, G}

A. {E, F, G}, {E, G, F}, {F, G, E}, {F,E, G}, {G, E, F}, {G, F, E}, {E, E, E}, {F, F, F} {G, G, G} B. {E, F, G}, {F, G, E}, {F,E, G}, {G, E, F}, {G, F, E} C. {E, F, G}, {E, G, F}, {F, G, E}, {F,E, G}, {G, E, F}, {G, F, E} D. {E, F, G}, {F, G, E}, {G, E, F}

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Mathematics

Identify the vertex, the equation of the axis of symmetry, and the x- and y-intercepts of the graph. Then graph.f(x) = x2 + 5x + 4

A. Vertex: ;
axis of symmetry: x = - ;
x-intercepts: (1, 0), (4, 0);
y-intercept: (0, 4)

B. Vertex: ;
axis of symmetry: x = ;
x-intercepts: (-1, 0), (-4, 0);
y-intercept: (0, 4)

C. Vertex: ;
axis of symmetry: x = ;
x-intercepts: (1, 0), (4, 0);
y-intercept: (0, 4)

D. Vertex: ;
axis of symmetry: x = - ;
x-intercepts: (-1, 0), (-4, 0);
y-intercept: (0, 4)