Combine like terms when possible and write the polynomial in descending powers of the variable. Give the degree of the simplified polynomial. Decide whether the simplified polynomial is a monomial, a trinomial, or none of these.10n9 - 15n9 + 5n6 + 3n9 - 11n6
A. -2n9 - 6n6; 9; binomial
B. -8n15; 15; monomial
C. Cannot be simplified
D. -8n9; 9; monomial
Answer: A
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Use synthetic division to divide.(x5 - 243) ÷ (x - 3)
A. x4 + 3x3 + 9x2 + 27x + 81 + 
B. x4 + 3x3 + 9x2 + 27x + 81
C. x4 + 3x3 + 3x2 + 3x + 3
D. x4 - 3x3 + 9x2 - 27x + 81
Solve the equation.
x = 3 + 
x
A. {-45} B. {-90} C. {45} D. {90}
Solve the problem.Suppose that during a flu epidemic in a particular city, the number of people, N(x), infected (in thousands) at the end of x weeks is approximated by ?N(x) = 
What is the horizontal asymptote of the graph of this function? What does this suggest about the maximum number of people who will eventually be infected? Explain your reasoning.
What will be an ideal response?
Find an equation of variation in which the following are true.y varies directly as x and inversely as z, and y = 4 when x = 2 and z = 9.
A. y = 21xz
B. y = 
C. y = 
D. y = 