Prove identity (5.25) by negating the upper index in vandermonde's convolution (5.22). then show that another negation yields (5.26).

Atoy company is considering a cube or sphere-shaped container for packaging a new product. the height of the cube would equal the diameter of the sphere . compare the volume to surface area ratios of the containers. which packaging will be more efficient? for a sphere, sa =4πr²

Which value is not a solution of 8x^3 – 1 = 0

Awater tank holds 18000 gallons. how long will it take for the water level to reach 6000 gallons if the water is used at anaverage rate of 450 gallons per day