Write the equation for the shape described.The circle with endpoints of a diameter at (3, -5) and (7, -4)
A. 
2 + 
2 =
B. 2 +
2 = 17
C. 2 +
2 = 101
D. 2 +
2 = 181
Answer: A
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Factor by grouping.20x2 - 16x - 15x + 12
A. (20x - 3)(x - 4) B. (20x + 3)(x + 4) C. (4x + 3)(5x + 4) D. (4x - 3)(5x - 4)
Find all complex roots. Write the answer in polar form, with 0 ? ? ? 360°.Cube roots of 5 + 5i
A. 
(cos 20° + i sin 20°), 
(cos 140° + i sin 140°), 
(cos 260° + i sin 260°)
B. 
(cos 20° + i sin 20°), 
(cos 140° + i sin 140°), 
(cos 260° + i sin 260°)
C. 
(cos 30° + i sin 30°), 
(cos 150° + i sin 150°), 
(cos 270° + i sin 270°)
D. 
(cos 20° + i sin 20°), 
(cos 140° + i sin 140°), 
(cos 260° + i sin 260°)
Sketch an angle ? in standard position such that ? has the least positive measure and the given point is on the terminal side of ?.(-2, 5) 
A. 
B. 
C. 
D. 
Use the square root property to solve the equation.(x + 2)2 = 15
A. {13}
B. {- 
, 
}
C. {2 - 
, 2 + 
}
D. {-2 - 
, -2 + 
}