Solve the system of equations.x - 6y + z = 266x - y - z = 9
A. 
B. 
C. 
D. 
Answer: D
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Find the accumulated amount A if the principal P is invested at an interest rate of r per year for t years. Round your answer to the nearest cent. ? P = $180,000, r = 6%, t = 3, compounded daily ? $__________
Fill in the blank(s) with the appropriate word(s).
Graph the equation as a solid line. Graph the inverse relation as a dashed line on the same axes by reflecting across the line y = x.y = 
x + 3
A. 
B. 
C. 
D. 
Solve the problem.The average daily temperature T of a city in the United States is approximated by T = 55 - 23 cos 
(t - 30)where t is in days, 1 ? t ? 365, and t = 1 corresponds to January 1. For what range of values of t is the average daily temperature above 70°F? Use a calculator and round answers to the nearest whole number.
Fill in the blank(s) with the appropriate word(s).
Solve the equation.
= x + 2
A. {6} B. {-6} C. {-5} D. {4}