Factor, if possible.x2 - 8xy + 16y2
A. (x - 4y)2
B. (x + 4y)2
C. Prime polynomial
D. (x - 4y)(x + 4y)
Answer: A
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Solve.The annual salaries of a software engineer and a project supervisor total 
If the project supervisor makes $15,000 more than the software engineer, find each of their salaries.
A. Software engineer: $72,700; project supervisor: $117,700 B. Software engineer: $72,700; project supervisor: $87,700 C. Software engineer: $87,700; project supervisor: $102,700 D. Software engineer: $102,700; project supervisor: $117,700
Prove the identity.cot ?(cot ? + tan ?) = csc2?
What will be an ideal response?
Simplify the expression. Assume that all variables are positive when they appear.
A. - 
B. -9
C. - 
D. -20
Sketch the graph of the rational function, including all asymptotes. Provide other information as requested.f(x) = 
A. vertical asymptotes: x = 6 and x = -3
B. vertical asymptotes: x = 6 and x = -3
C. vertical asymptotes: x = 6 and x = -3
D. vertical asymptotes: x = 6 and x = -3;
oblique asymptote: y = x + 4