Answer the question.The monomial 81x18y14 is a perfect square.True or False?
A. True.
B. False.
Answer: A
Mathematics
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Graph y = f(x).f(x) = |x| + 1
A. 
B. 
C. 
D. 
Mathematics
Solve the problem.If the average cost per unit C(x) to produce x units of plywood is given by C(x) = 
, what is the unit cost for 20 units?
A. $18.00 B. $15.00 C. $45.00 D. $1.50
Mathematics
Use Descartes' Rule of Signs to determine the possible number of positive real zeros and the possible number of negative real zeros for the function.f(x) = 7x8 + 3x6 + 2x4 + 5x2 + 2
A. 
B. 
C. 
D. 
Mathematics
Find the root if it is a real number.
A. 4 B. 5 C. 6 D. 25
Mathematics