The graph of f(x) = ax2 + bx + c is given in the figure. Solve the equation 
A. 0
B. -5
C. 5
D. No real solutions
Answer: B
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As part of a statistics project, a 6th grade teacher brings to class a container with 300 red marbles and 500 white marbles which are thoroughly mixed. To figure out how many marbles in the container are red without actually counting them all, a student randomly draws 40 marbles from the container. Of the 40 marbles drawn, 16 are red.The sampling proportion is
A. 37
%.
B. 5%.
C. 
%
D. 
%.
E. none of these
Find the missing length(s) in the right triangle. If necessary, round to the nearest tenth.
A. a = 29.4 cm; b = 17 cm B. a = 17 cm; b = 867 cm C. a = 17 cm; b = 29.4 cm D. a = 29.4 cm; b = 25.5 cm
Provide an appropriate response.Solve for x: 
+ 
= 1
A. 0 B. 2 C. -2 D. 8 E. -8
Use the given values of the variable to make a vertical table of solutions for the equation.y = 2x, x = -4, 0, 4, 8
A. 
B. 
C. 
D. 