N^2 - 48n + 54 - 77n^2 + 60n is equivalent to which of the following? 0 -76n^2 + 12n + 54
0 -10nº2
0 -10n^6
0 -76n^4 + 12n^2 + 54
O -77n^2 + 12n + 54

What properties allow transformation to be used as a problem solving tool

Use the frequency distribution, which shows the number of american voters (in millions) according to age, to find the probability that a voter chosen at random is in the 18 to 20 years old age range. ages frequency 18 to 20 5.9 21 to 24 7.7 25 to 34 20.4 35 to 44 25.1 45 to 64 54.4 65 and over 27.7 the probability that a voter chosen at random is in the 18 to 20 years old age range is nothing. (round to three decimal places as needed.)

Many newspapers carry a certain puzzle in which the reader must unscramble letters to form words. how many ways can the letters of emdangl be arranged? identify the correct unscrambling, then determine the probability of getting that result by randomly selecting one arrangement of the given letters.