Write a negation for the statement.My brother is asleep.
A. My sister is awake.
B. My sister is asleep.
C. My brother is not asleep.
D. The person who is asleep is not my brother.
Answer: C
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Simplify and then, if appropriate, write in radical notation. z-2/5 ? z3/5
A. 
B. 
C. 
D. 
Find all cube roots of the complex number. Leave answers in trigonometric form.2 + 2i
A. 
cis 20°, 
cis 140°, 
cis 260°
B. 
cis 20°, 
cis 140°, 
cis 260°
C. 
cis 30°, 
cis 150°, 
cis 270°
D. 
cis 20°, 
cis 140°, 
cis 260°
Use an algebraic approach to solve the problem:A board 10 feet long is cut into two pieces such that the length of one piece is two-thirds of the length of the other piece. Find the length of the shorter piece of board.
A. 10 feet B. 2 feet C. 6 feet D. -2 feet E. 4 feet
Find the length of the arc intercepted by a central angle ? in a circle of given diameter or radius. Round your answer to as many places as your calculator will allow.Radius 0.337 mm, ? = 
radians
A. 1.27046007 mm B. 0.88226394 mm C. 0.28083333 mm D. 0.4044 mm