Give the center and radius of the circle.(x + 4)2 + (y + 8)2 = 16
A. center: (-4, -8); r = 4
B. center: (4, 8); r = 16
C. center: (-4, -8); r = 16
D. center: (4, 8); r = 4
Answer: A
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Describe the given set of points with a single equation or with a pair of equations.The circle of radius 4 centered at the point (5, -6, 16) and lying in a plane parallel to the xy-plane
A. 
2 + 
2+ 1 = 16
B. (x - 5)2 + (y - 6)2 = 16 and z = 16
C. (x - 5)2 + (y - 6)2 = 16 and x + y = -1
D. 
2+ 
2= 16 and z = 16
Determine whether or not the function is one-to-one.f(x) = - 
A. Yes B. No
Solve the problem.Mieko, who is 2.00 m tall, wishes to find the height of a tree. She walks 22.93 m from the base of the tree along the shadow of the tree until her head is in a position where the tip of her shadow exactly overlaps the end of the tree top's shadow. She is now 7.81 m from the end of the shadows. How tall is the tree? Round to the nearest hundredth.
A. 5.87 m B. 7.87 m C. 3.03 m D. 0.68 m
Factor completely, if possible.8x2 + 35x - 25
A. (5 - 8x)(8x - 5) B. (x - 5)(8x - 5) C. (x + 5)(8x - 5) D. (8x - 30)(8x - 5)