The latest online craze is a new game, khan on seven. you get 100 points for playing the game. in addition, you get 50 points for each seven-letter word you make with the ten letters you receive. sal wants to break the record, and he needs 18,000 or more points to do so.

1. write an inequality to determine the number of seven-letter words, w, sal could make to break the record.

2. graph the solution set to this inequality

The investigating team suspected that there were differences in the cost of repairing cars in workshop i and workshop ii. the investigating team suspected that the costs raised by workshop i were greater than workshop ii. for that they tested the repair of 15 cars in each workshop to see the cost of repairs. the decision of the right hypothesis to prove the suspicion above is a. h0 : μ1- μ2­ = 0; ha : μ1- μ2­ ≠ 0 b. h0 : μ1- μ2 ≥ 0; ha : μ1- μ2 < 0 c. h0 : μd ≥ 0; ha : μd < 0 with μd = μ2- μ1 d. h0 : μd = 0; ha : μd ≠ 0 with μd = μ2- μ1 e. h0 : μ1- μ2 = 0; ha : μ1- μ2 ≥ 0