Find an equation of the parabola described.Focus at (11, 0); directrix the line x = -11
A. y2 = 44x
B. y2 = 11x
C. y2 = -44x
D. x2 = 44y
Answer: A
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Mitigation Masters is a company that specializes in the rescue and repair of paper documents and books damaged by water. They are known all over the United States for salvaging governmental records, academic and private libraries, and museum collections. Mitigation Masters has spent years in painstaking research and practical experimentation to develop methods of drying the documents, preventing mold growth, and minimizing the fragility of damaged documents. Mitigation Masters intends to move into the international market. The best entry mode for it would be
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Solve the problem.It is necessary to have a 40% antifreeze solution in the radiator of a certain car. The radiator now has 70 liters of 20% solution. How many liters of this should be drained and replaced with 100% antifreeze to get the desired strength?
A. 28 L B. 23.3 L C. 17.5 L D. 35 L
Simplify the complex rational expression.
A. 
B. - 
C. 
D. 
Add or subtract by first simplifying each radical (if needed) and then combining any like radical terms.21
- 12
A. 63
B. 33
C. 9
D. 9