Which statements are true about the ordered pair (5, −6) and the system of equations? {x+y=−13x−y=21 Select ALL correct answers. A. The ordered pair (5, −6) is a solution to the first equation because it makes the first equation true. B. The ordered pair (5, −6) is a solution to the second equation because it makes the second equation true. C. The ordered pair (5, −6) is a solution to the system because it makes both equations true. D. The ordered pair (5, −6) is not a solution to the system because it makes at least one of the equations false.

The vice president of programming at nbc is finalizing the prime-time schedule for the fall. she has decided to include a hospital drama but is unsure which of two possibilities to select. she has a pilot called the surgeon and another called critical care. to her make a final decision, a sample of 20 viewers from throughout the united states was asked to watch the two pilots and indicate which show they prefer. the results were that 12 liked the surgeon, 7 liked critical care, and one had no preference. state the decision rule, using the 0.10 significance level. h0: π = 0.50 h1: π ≠ 0.50 1. reject h0 if number of + signs is either < = or > = 2. what is your decision regarding h0? is there a preference for one of the two shows?