Find the location and value of each local extremum for the function.
A. None
B. (-2, 3), (2, 0)
C. (2, 0)
D. (-2, 3)
Answer: B
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Find the exact value using a double-angle identity.sin 
A. 
B. 
C. 
D. 
The diagram shows two binary sequences about to be manipulated by passing through a microchip's series of gates. Provide the results of these computer manipulations, designated by ? in the diagram.
A. 
B. 
C. 
D. 
Solve the problem.There are 30 students in Ms. Roth's preschool class. All of of the students own either cats or dogs, and some have both cats and dogs. If 18 of the students own dogs and 22 own cats, how many own both cats and dogs?
A. 10 B. 12 C. 8 D. 20
Solve. Graph the solution on a number line, and express it in interval notation.4x - 12 < -2.8
or
4x - 12 > 2.8 
A. x ? -3.7 or x > 3.7, (-?, -3.7] ? (3.7, ?)
B. (-?, 2.3)
C. 2.3 < x < 3.7, (2.3, 3.7)
D. x < 2.3 or x > 3.7, (-?, 2.3) ? (3.7, ?)