Evaluate the function.Find f(-10) when f(x) = .

A.
B. - 
C.
D. 5


Answer: C

Mathematics

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Find the focus and directrix of the parabola.x2 + 8y = 0

A. (0, -2); y = 2 B. (0, -2); y = -2 C. (0, -2); x = 2 D. (-2, 0); y = 2

Mathematics

In the given voting system, the weights represent, in order, voters A, B, C, and so on. Determine which voters are critical in the indicated coalition.[23 : 3, 5, 6, 8, 9] ; coalition {A, B, D, E}

A. Only A and B are critical. B. Only D and E are critical. C. None are critical. D. All are critical.

Mathematics

Write a formula for the general term (the nth term) of the arithmetic sequence. Then use the formula for an to find a20, the 20th term of the sequence.2, 6, 10, 14, 18, . . .

A. an = 4n - 2; a20 = 78 B. an = n + 4; a20 = 24 C. an = 4n + 2; a20 = 82 D. an = 2n - 4; a20 = 36

Mathematics

Find the equation of the graph. Write the equation in slope-intercept form.

A. y = x - 4
B. y = 2 - x

C. y = - x + 8

D. y = 2 + x

Mathematics