Determine if the given ordered triple is a solution of the system.(3, -1, -2)x + 2y + 2z = -3 5y + 3z = -11z = -2
A. not a solution
B. solution
Answer: B
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Find the x- and y-intercepts of the graph.
A. x-intercept: 2, y-intercept: -8 B. x-intercept: -8, y-intercept: 2 C. x-intercept: 8, y-intercept: -2 D. x-intercept: 2, y-intercept: 8
Write the function in terms of its cofunction. Assume that any angle in which an unknown appears is an acute angle.cos 33°
A. sin 57° B. sec 57° C. cos 123° D. sin 33°
For the curve r(t), write the acceleration in the form aTT + aNN.r(t) = (cosh t)i + (sinh t)j + tk
A. a = (-sinh t)T + N
B. a = (sinh t)T + N
C. a = (
sinh t)T + N
D. a = (- 
sinh t)T + N
Solve the problem. Round your answer to the nearest tenth, if necessary.A man rode a bicycle for 12 mi and then hiked an additional 8 mi. The total time for the trip was 5 hr. If his rate when he was riding a bicycle was 10 mph faster than his rate walking, what was each rate?
A. Bike: 13 mph; hike: 3 mph B. Bike: 12 mph; hike: 2 mph C. Bike: 14.5 mph; hike: 4.5 mph D. Bike: 11.5 mph; hike: 1.5 mph