The reflector of a searchlight is in the shape of a paraboloid of revolution. Its diameter is 16 centimeters and its depth is 16 centimeters. How far from the vertex should the light bulb be placed so that the rays will be reflected parallel to the axis?

answer: what in the world is this

step-by-step explanation:

step-by-step explanation:

; fx

let y equal to

the total fare and x is the mile of taxi ride. so the equation is

y = 0.55x + 1.75

since susie has

$10 to spend for a taxi cab, so he can have

10 = 0.55x +

1.75

x = 15 miles of

taxi ride

so the system of

inequality is

10 < 0.55x +

1.75

x > 2

answer: the is put the 450

step-by-step explanation: