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Suppose sin(A) = 2/5. Use the trig identity sin^2(A) + cos^2(A) = 1 to find cos(A) in quadrant I. Round to ten-thousandth.

Find the equation of the trend line (line of best fit). show your work i'm using the points (34,76) (42,91)

Determine whether the points (–3,–6) and (2,–8) are in the solution set of the system of inequalities below. x ? –3 y < 5? 3x + 2 a. the point (–3,–6) is not in the solution set, and the point (2,–8) is in the solution set. b. neither of the points is in the solution set. c. the point (–3,–6) is in the solution set, and the point (2,–8) is not in the solution set. d. both points are in the solution set.

Ateam of runners is needed to run a 1 2 -mile relay race. if each runner must run 1 4 mile, how many runners will be needed?