Factor completely. If prime, so state.x4 - r4
A. (x + r)2(x - r)2
B. (x2 + r2)(x2 - r2)
C. (x2 + r2)(x - r)(x + r)
D. (x2 + r2)(x - r)(x - r)
Answer: C
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Graph.4(x - 3)2 + 25(y + 5)2 = 100
A. 
B. 
C. 
D. 
Solve.Two points, A and B, are on opposite sides of a building. A surveyor chooses a third point, C, 69 yd from B and 91 yd from A, with angle ACB measuring 51.1°. How far apart are A and B (to the nearest yard)?
A. 72 yd B. 90 yd C. 99 yd D. 81 yd
Solve the problem.A meteor circles the earth in an elliptical orbit. The major axis of the elliptical orbit is 24 × 108 miles long and the minor axis is 14 × 108 miles long. If the earth is at one focus of the orbit what is the distance from the other focus?
A. 2 × 
× 103 mi
B. 2 × 
× 104 mi
C. 
× 104 mi
D. 2 × 
× 108 mi
Solve the problem.
What is the probability that the arrow will land on 4 or 1?
A. 
B. 
C. 4
D. 