Factor the polynomial as the difference of two squares or state that it is irreducible.x4 - 625
A. irreducible
B. (x2 - 25)(x + 5)(x - 5)
C. (x + 5)2(x - 5)2
D. (x2 + 25)(x + 5)(x - 5)
Answer: D
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Solve the problem.Economists use what is called a Leffer curve to predict the government revenue for tax rates from 0% to 100%. Economists agree that the end points of the curve generate 0 revenue, but disagree on the tax rate that produces the maximum revenue. Suppose an economist produces this rational function 
where R is revenue in millions at a tax rate of x percent. Use a graphing calculator to graph the function. What tax rate produces the maximum revenue? What is the maximum revenue?
A. 37.5%; $210 million B. 39.6%; $209 million C. 34.9%; $207 million D. 35.8%; $209 million
Express the relation S as a set of ordered pairs.
A. S = {(4, 2), (-1, 3), (2, -2), (-2, 4), (-3, -4)} B. S = {(2, 4), (2, 2), (-4, 3), (4, -2), (3, 1)} C. S = {(4, 2), (2, 2), (-1, 3), (3, -4), (-2, 4)} D. S = {(2, 4), (3, -1), (-2, 2), (4, -2), (-4, -3)}
Find the magnitude of the vector.
?
What will be an ideal response?
Use radical notation to write the expression. Do not simplify.(4m + n) 3/4
A. 
B. 
C. 
D. 