An architect is designing an atrium for a hotel. the atrium is to be rectangular with a perimeter of 756756 ft of brass piping. what dimensions will maximize the area of the atrium?

The maximum area of a rectangle  is when it is also a square.
Therefore the maximum dimensions will be when each side = sqrt 756

=  27.5 feet

the law of definite proportions states samples of a compound will always contain the same proportion of elements by mass. in other words, a given compound will always contain the same elements in the same proportions by mass.the law of multiple proportions states when two elements combine with each other to form more than one compound, then the weights of one element that combine with a fixed weight of the other are in a ratio of small whole numbers.