Solve the system by graphing.
2x + y = 4
x + y = 3
Ans: (1, 2)
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Represent the following with a graph.
A. 
B. 
C. 
D. 
Solve.Consider the formula T = 591 - 76 cos 2?, where ? is measured in degrees. To the nearest hundredth of a degree, what is the smallest positive value of ? for which the value of T will be 577?
A. 82.38° B. 79.38° C. 36.69° D. 39.69°
Solve the problem.The polynomial function 
represents the yearly income (or loss) from a real estate investment, where t is time in years. After what year does income begin to decline?
A. 7.5 B. 8.5 C. 17 D. 11.33
Solve the problem.The perimeter of a rectangle is 78 m. If the width were doubled and the length were increased by 25 m, then the perimeter would be 158 m. What are the dimensions?
A. Width: 15 m; length: 24 m B. Width: 14 m; length: 19 m C. Width: 19 m; length: 19 m D. Width: 24 m; length: 15 m