Find the root. Assume that variables represent any real number. 
A. 
B. -x9
C. - 
D. x9
Answer: A
Mathematics
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Find the limit.
sec-1 x
A. - 
B. 
C. ?
D. 0
Mathematics
In a school survey, students showed these preferences for instructional materials. Answer the question.
About how many students would you expect to prefer written materials in a school of 600 students?
A. About 216 students B. About 9 students C. About 108 students D. About 54 students
Mathematics
Use the given vectors to find the specified scalar.v = -4i + 4j; Find v ? v.
A. 256 B. 32 C. 0 D. -32
Mathematics
Find the product.(w - 12)2
A. w2 - 24w + 144 B. w2 + 144 C. w + 144 D. 144w2 - 24w + 144
Mathematics