Graph the solution of the system.
A. 
B. 
C. 
D. 
Answer: D
Mathematics
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Solve the problem.The radiator in a certain make of car needs to contain 
of 40% antifreeze. The radiator now contains 
of 20% antifreeze. How many liters of this solution must be drained and replaced with 100% antifreeze to get the desired strength?
A. 25 liters B. 12.5 liters C. 20 liters D. 16.7 liters
Mathematics
Use a graphing calculator to solve the given equations to the nearest 0.01.3x3 + x2 - 15x - 5 = 0
A. -0.33, 2.24, -2.24 B. 0.33, 2.24, -2.24 C. 3, 2.14, -2.14 D. -3, 2.34, -2.34
Mathematics
Graph the inequality.x + y < -3
A. 
B. 
C. 
D. 
Mathematics
Solve the problem.Suppose that the sample space is S = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10} and that outcomes are equally likely. Compute the probability of the event E = {1, 2, 4, 5, 7, 9, 10}.
A. 7
B. 
C. 
D. 
Mathematics