Mathematics, 21.07.2019 11:30 kkatlynn
Awater tower is formed by joining two hemispheres to a cylinder and removing the flat surfaces at the ends. the volume needs to be 200 cubic meters. the metal used to form the hemispheres costs three times as much as the metal used to form the cylinder part. what dimensions of the water tower will minimize the cost?
Answers: 1
Mathematics, 21.06.2019 13:30, ferg6
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
Answers: 3
Mathematics, 21.06.2019 23:30, freesiareal2780
What are the measures of angles a, b, and c? show your work and explain your answers. 25 points
Answers: 1
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