Solve by completing the square.x2 - 12x - 13 = 0
A. -1, 13
B. ± 
C. -1, -12
D. -13, 1
Answer: A
You might also like to view...
Solve the problem.Consider the graph of f(x) = 
, 0 ? x ? 1. What symmetry does the graph have? Is f its own inverse?
A. The graph of f is symmetric with respect to the y-axis. The function f is its own inverse because (f?f)(x) = x. B. The graph of f is symmetric with respect to the y-axis. The function f is not its own inverse because (f?f)(x) = |x|. C. The graph of f is symmetric with respect to the line y = x. The function f is its own inverse because (f?f)(x) = x. D. The graph of f has no symmetry. The function f is not its own inverse because there is no symmetry.
Simplify.(-i)31
A. -i B. 1 C. i D. -1
Perform the indicated operation.(-4a4 + 2a3) - (18a4 + 10a3)
A. 14a4 + 12a3 B. -22a4 + 12a3 C. -22a4 - 8a3 D. -30a7
Find the area.
A. 220.5 cm2 B. 798 cm2 C. 399 cm2 D. 273 cm2