A certain article reported the following observations, listed in increasing order, on drill lifetime (number of holes that a drill machines before it breaks) when holes were drilled in a certain brass alloy. 11 14 20 23 30 37 39 43 48 50
60 62 64 66 69 71 75 77 78 79
81 83 85 90 92 94 95 98 100 103
104 104 112 117 123 135 139 140 149 159
162 167 185 205 248 263 288 322 388 513
Compute the 25% trimmed mean for the lifetime data. (Round 25% trimmed mean to four decimal places.)

25% trimmed mean :

Aformual for 8 bottles of window cleaner calls for 6 cups of rubbing to customers alcohol 2 1/4 gallons of water and 1 1/2 cups of ammonia alcohol would the forula call if a factory made 1,280 bottles for stores to sell to customers

Cameron indoor stadium at duke university is one of the most revered sites in all of college basketball, as well as in all of sports period. duke’s men’s and women’s basketball programs have attained quite a few wins in the building over the last seventy years. cameron indoor stadium is capable of seating 9,460 people. for each game, the amount of money that the duke blue devils’ athletic program brings in as revenue is a function of the number of people in attendance. if each ticket costs $45.50, find the domain and range of this function.

Solve this system of equations. 12x − 18y = 27 4x − 6y = 10