Rationalize the denominator and, if possible, simplify to form an equivalent expression.
A. 
B. 
C. 
D. 
Answer: B
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Solve the problem.Some values of linear functions f and g are listed in the table below. Find the solution of a system of two equations that describes the functions f and g. HINT: Use the linear regression and graphing functions on a calculator to find and graph equations of f and g.
A. (3.2, 58.7) B. (7.6, 44.8) C. (6.8, 44.2) D. (0.3, 73.7)
Solve the problem.Mardi received an inheritance of $50,000. She invested part of it at 12% and the rest at 11%. Her total annual income from the investments was $5900. Find the amount invested at 12%.
A. $40,000 B. $44,100 C. $20,000 D. $39,000
Use a graphing calculator to estimate the local maximum and local minimum values of the function to the nearest hundredth.y = 3x3 - 4x2 - 6x + 2
A. Local max: (-0.48, 3.68); local min: (1.38, -6.15) B. Local max: (-0.48, 3.63); local min: (1.38, -6.01) C. Local max: (-6.01, 1.38); local min: (3.63, -0.48) D. Local max: (-0.44, 3.61); local min: (1.45, -5.97)
Simplify.8.69 + 31.85 ÷ (7.65 - 3.1) - 1.4
A. 18.80 B. 14.29 C. 12.87 D. 7.51