Simplify the expression. Assume all variables represent positive real numbers.
A. -5k2
B. 5k2
C. 125k2
D. 5k9
Answer: B
Mathematics
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Simplify. Write your answer in the form a + bi, where a and b are real numbers.(-4 + 4i) + (7 + 2i)
A. 3 + 8i B. 3 + 6i C. -3 + 6i D. 7 + 6i
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Find a recursive rule for the nth term of the sequence.8, 32, 128, 512, ...
A. an= an-1 ? 4 B. an= an-1 + 8 C. an= an-1 ? 8 D. an= an-1 + 4
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Find all solutions of the following equation in the interval [0, 2?).
?
?
A. 
B. ?
C. ?
D. ?
E. ?
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Multiply and simplify.
? 
A. 
B. 
C. 
D. 120xy
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