RADIO TELESCOPES The cross section of a large radio telescope is a parabola. The equation that describes the cross section is y=275x2−43x−323, where y is the depth of the dish in meters at a point x meters from the center of the dish. If y=0
represents the top of the dish, what is the width of the dish? Solve by graphing.

Drag and drop the answers into the boxes to complete this informal argument explaining how to derive the formula for the volume of a cone. since the volume of a cone is part of the volume of a cylinder with the same base and height, find the volume of a cylinder first. the base of a cylinder is a circle. the area of the base of a cylinder is , where r represents the radius. the volume of a cylinder can be described as slices of the base stacked upon each other. so, the volume of the cylinder can be found by multiplying the area of the circle by the height h of the cylinder. the volume of a cone is of the volume of a cylinder. therefore, the formula for the volume of a cone is 1/3 1/2 1/3πr^2h 1/2πr^2h πr^2h πr^2

Aboat costs 19200 and decreases in value by 12% per year. how much will it cost in 5 years

What is the y-intercept of the line given by the equation