Use the substitution method or the elimination method to solve the system. If the system has infinitely many solutions, express the ordered pair in terms of x or y.7x - 4y = 321x - 12y = 12
A. (3, 12)
B. (3, 4)
C. no solution
D. 
Answer: C
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Provide an appropriate response.Suppose ?PQR ? ?ABC, where ?ABC is shown below. Find PQ.
A. 5 B. Cannot be determined C. 3 D. 4
Give the focus, directrix, and axis for the parabola.x2 = 40y
A. (0, 10), y = -10, y-axis B. (0, -10), x = -10, x-axis C. (10, 0), y = 10, y-axis D. (10, 0), x = 10, x-axis
Solve the problem.A blimp is 1600 meters high in the air and its crew measures the angles of depression to two stadiums to the west of the blimp. If those measurements are 81.4° and 23.2°, how far apart are the two stadiums to the nearest meter?
A. 2443 m B. 3491 m C. 3975 m D. 8959 m
For the given function, find the indicated function value.For f(x) = 
, find f(-62).
A. 5 B. 4 C. -5 D. Does not exist as a real number