Find the equilibrium point for the supply and demand curves. Round answers to two decimal places.Demand: q = 830 - 20x, Supply: q = 280 + 10x
Price
A. (55.00, -270.00)
B. (18.33, 463.33)
C. (-55.00, 1930.00)
D. (37.00, 90.00)
Answer: B
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Solve the problem.The function A = A0e-0.01155x models the amount in pounds of a particular radioactive material stored in a concrete vault, where x is the number of years since the material was put into the vault. If 500 pounds of the material are placed in the vault, how much time will need to pass for only 140 pounds to remain?
A. 220 years B. 120 years C. 110 years D. 115 years
Solve the polynomial inequality and graph the solution set on a number line. Express the solution set in interval notation.x2 - 2x - 3 ? 0
A. [-1, 3]
B. (-?, -1]
C. (-?, -1] ? [3, ?)
D. [3, ?)
Multiply:
Use the Gauss-Jordan method to find A-1, if it exists.A = 
A. 
B. 
C. 
D. Does not exist