Simplify.11 + (-13) - (-15) - 8
A. 5
B. 21
C. -9
D. 17
Answer: A
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If 
is an equilibrium solution of an equation of change involving 
, what is the value of
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?
?
A. 0
B. 5
C. -5
D. None of the above
Find the actual difference.0.25 - (-7.468)
A. 1.867 B. 7.818 C. 7.718 D. 7.218
Information is given about a polynomial f(x) whose coefficients are real numbers. Find the remaining zeros of f.Degree 4; zeros: 3 - 5i, 9i
A. -3 - 5i, -9i B. 3 + 5i, 9 - i C. 3 + 5i, -9i D. -3 + 5i, -9i
Find the square root. Express the answer as a whole number or as a square root. Do not use a calculator.
A. 3 B. 21 C. 15 D. 8