Divide and simplify.
÷ 
A. 
B. 
C. 
D. (z + 3)(z - 8)
Answer: C
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Solve the problem. Round to the nearest whole unit.The top and base of a window are respectively 11 ft and 3 ft above the level of an observer's eyes. At what distance from the wall must the observer stand in order to make the angle subtended by the window equal to the angle of elevation of its base?
A. 6 ft B. 8 ft C. 10 ft D. 4 ft
Factor, if possible.25 -(x + 4y)2
A. (5 + 4xy)(5 - 4xy) B. (5 + x - 4y)(5 - x - 4y) C. (5 + x + y)(5 - x - y) D. (5 + x + 4y)(5 - x - 4y)
Find a general term an for the geometric sequence.a6 = - 
, a11 = 
, and r < 0
A. an = 4 
n-1
B. an = 4 
n-1
C. an = 
(-2)(n-1)
D. an = 6 
n-1
Use the given information to find the exact value of the trigonometric expression.tan ? = 
; ? < ? < 
Find sin(2?).
A. 
B. 
C. - 
D. - 