Solve the system graphically.x2 - y2 = 7.82x = 2y - 5
A. ?(-2.97, 1.01) and ?(6.31, 5.65)
B. ?(-6.31, -5.65) and ?(2.97, -1.01)
C. ?(-2.97, -1.01) and ?(6.31, -5.65)
D. ?(-6.31, 5.65) and ?(2.97, 1.01)
Answer: A
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Solve the problem.A company packages its powdered iced tea mix in containers in the shape of a cylinder. The top and bottom are made of a plastic product that costs 3 cents per square centimeter. The side of the container is made of a cheaper material that costs 1 cent per square centimeter. The height of the cylinder can be found by dividing its volume by the area of its base. (i) If x is the radius of the base (in centimeters), write a rational expression in x whose values give the cost of each container, assuming that the capacity of the container is 90 cubic centimeters.(ii) Find the cost of a container whose base is 10 centimeters in diameter, using 3.14 as an approximation of ?. Round to the nearest cent, if necessary.
A. (i) 
;
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B. (i) 
;
(ii) $0.47
C. (i) 
;
(ii) $47.30
D. (i) 
;
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