Divide and simplify to the form a + bi.
A. - 
+ 
i
B. - 
- 
i
C. 
- 
i
D. 
+ 
i
Answer: B
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Solve the problem. Unless stated otherwise, assume that the projectile flight is ideal, that the launch angle is measured from the horizontal, and that the projectile is launched from the origin over a horizontal surfaceA fan in the bleachers at Wrigley Field throws an opposing player's home run baseball back onto the playing field. Assume that the fan is 30 feet above the field and that the ball is launched at an angle of 27°. When will the ball hit the ground if its initial speed is 22 ft/sec? Round your answer to the nearest tenth.
A. 3.7 sec B. 1.1 sec C. 2.0 sec D. 1.7 sec
Express the solution set of the inequality in interval notation.x < 6
A. (-?, 6) B. (-?, 6] C. (6, ?) D. [6, ?)
Use the coordinates of the indicated points to find the slope of the line. 
A. -2
B. 2
C. 
D. - 
Multiply.(-x)(x - 5y)(x - 3y)
A. -x3 + 8x2y - 15xy2 B. -x2 + 8xy - 15y2 C. -x3 - 8x2y + 15xy2 D. -x3 - 8xy + 15y2