On a dry surface, the braking distance (in meters) of a Pontiac Grand AM SE can be approximated by a normal distribution with a mean of 45.1 meters and a standard deviation of 0.5 meters. what breaking distance of a Pontiac Grand AM SE represents the first quartile?

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.