Give the center and radius of the circle described by the equation and graph the equation.(x + 1)2 + (y + 5)2 = 4
A. center (1, - 5), r = 2
B. center (- 1, - 5), r = 2
C. center (1, 5), r = 2
D. center (- 1, 5), r = 2
Answer: B
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Find dy/dt.y = t8(t4 + 1)4
A. t8(t4 + 1)3(24t3 + 8) B. t7(t4 + 1)3(24t4 + 8) C. 8t7(t4 + 1)3(16t4 + 1) D. 128t30(t4 + 1)3
Use the Leading Coefficient Test to determine the end behavior of the polynomial function. Then use this end behavior to match the function with its graph.f(x) = -3x2 + 3x + 1
A. rises to the left and falls to the right
B. falls to the left and rises to the right
C. falls to the left and falls to the right
D. rises to the left and rises to the right
Find the exact value by using a half-angle identity.tan 75°
A. 2 - 
B. -2 + 
C. 2 + 
D. -2 - 
Solve the problem.A Ferris wheel has a diameter of 260 feet and the bottom of the Ferris wheel is 11 feet above the ground. How far to the left or right is a car that is 191 feet above the ground? Round to the nearest tenth if necessary. 
A. 120 B. 252.7 C. 114.8 D. 255.1