Without using a calculator, determine the system of inequalities needed for the calculator-generated graph.

A. x2 + y2 ? 16
y ? -  
B. x2 + y2 ? 16
x ? -  
C. x2 + y2 ? 16
y ? - 
D. x2 + y2 ? 16
y ?  

Answer: C

Mathematics

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Solve the problem.A satellite dish is in the shape of a parabolic surface. Signals coming from a satellite strike the surface of the dish and are reflected to the focus, where the receiver is located. The satellite dish shown has a diameter of 4 feet and a depth of 6 feet. The parabola is positioned in a rectangular coordinate system with its vertex at the origin. The receiver should be placed at the focus  The value of p is given by the equation  How far from the base of the dish should the receiver be placed? [Hint: First write an equation in the form of 

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The graph of the polynomial f(x) is shown in the figure. Estimate the zeros and state whether their multiplicities are odd or even.

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