Solve the problem.A satellite dish is shaped like a paraboloid of revolution. The signals that emanate from a satellite strike the surface of the dish and are reflected to a single point, where the receiver is located. If the dish is 8 feet across at its opening and is 2 feet deep at its center, at what position should the receiver be placed?
What will be an ideal response?
The receiver should be located 2 feet from the base of the dish, along its axis of symmetry.
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Solve the equation.15 ( r + 2 ) = 12 ( r - 3 )
A. r = –20 B. r = –32 C. r = –27 D. r = –13 E. r = –22
Simplify the rational expression. Assume that no variable has a value which results in a denominator with a value of zero.
A. - 
B. 
C. 
D. - 
Solve the problem.In how many ways can 5 volunteers be assigned to 5 booths for a charity bazaar?
A. 240 ways B. 20 ways C. 60 ways D. 120 ways
Solve.The longest diagonal of a regular octagon (an eight-sided figure with all sides and angles equal) is directly proportional to the length of a side. If a regular octagon with sides 19 cm has a diagonal of length -19.26 cm, how long is the diagonal of an octagon with side 5 cm?
A. -4.93 cm B. -5.07 cm C. -0.13 cm D. -73.19 cm