Find the center-radius form of the equation of the circle.center (0, 2), radius 4
A. (x - 2)2 + y2 = 16
B. (x + 2)2 + y2 = 16
C. x2 + (y - 2)2 = 16
D. x2 + (y + 2)2 = 4
Answer: C
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Solve the equation.-72 = -6n
A. n = 66 B. n = 2 C. n = 12 D. n = -66
Solve the problem.An express and local train leave GraysLake at 3 P.M. and head for Chicago 50 miles away. The express travels twice as fast as the local and arrives 1 hour ahead of the local. Find the speed of each train.
A. Express's rate = 25 mph and local's rate = 12.5 mph B. Express's rate = 50 mph and local's rate = 25 mph C. Express's rate = 60 mph and local's rate = 30 mph D. Cannot be determined with information given.
Determine the number of triangles that can be drawn with the given data.a = 24, b = 23, A = 49°
A. 1 B. 3 C. 0 D. 2
For the given pair of functions, find the requested function.f(x) = x2 - 2 and g(x) = 5x + 8; (g ? f)(x)
A. x2 + 5x + 6 B. x2 - 5x - 10 C. 5x2 - 2 D. 25x2 + 10x - 8