Find the inverse of the function.K = {(-5, -9), (9, 5), (3, 6), (-3, -6)}
A. K-1 = {(-6, 3), (5, 9), (-9, 9), (6, -3)}
B. K-1 = {(-9, -5), (5, 9), (6, 3), (-6, -3)}
C. K-1 = {(-5, - 
), (9, 
), (3, 
), (-3, - 
)}
D. K-1 = {(-6, 3), (3, 9), (-9, -5), (6, -3)}
Answer: B
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Use rational exponents to write a single radical expression.
A. 
B. 
C. 
D. 
Solve the inequality. Express your answer using interval notation. Graph the solution set.|x - 2| < 14
A. (-?, 16)
B. (-16, 12)
C. (-12, 16)
D. (-?, -12)
Solve the problem.Acetone is a solvent frequently used to clean lubricants from machine components. Once used, the dirty solvent need not be discarded. It may be distilled to recover pure acetone from the soiled mixture. During a distillation cycle, 71% of the acetone can be recovered. Calculate the effective volume of 1 liter of acetone. [The effective volume is the original 1 liter plus the accumulated amount recovered from an infinite number of distillation cycles].
A. 3.448 L B. 1.710 L C. 1.408 L D. An infinite number of liters
Write an equivalent expression using a commutative or associative law, as indicated.x + (4y + 7); associative
A. (4y + 7) + x
B. (x + 4y) + 7
C. x + (
+ 7)
D. x + (7 + 4y)