What is the standard deviation of the data set 32, 11, 29, 36, 22?

Ametalworker has a metal alloy that is 30? % copper and another alloy that is 55? % copper. how many kilograms of each alloy should the metalworker combine to create 90 kg of a 50? % copper? alloy?

Although changes result from business transactions, the equality of the fundamental bookkeeping equation must remain. t/f

Find the area of the triangle formed by the origin and the points of intersection of parabolas y=−3x^2+20 and y=x^2−16.