Which of the following points are solutions to the system of inequalities shown below? check all that apply y≤-2x+6 x> 1 answers: a. (0,6) b. (3,0) c. (2,11) d. (1,4) e. (5,-6) f. (2,1)

How many solutions does the nonlinear system of equations graphed below have? a. one b. zero c. four d. two

What is the missing value in the proportion 4/5 = x/30

You are in charge of the customer service phone line with many employees. at the end of each phone callthe customers are asked to rate their service from 1 to 5 stars, with 5 being the best. you find the averagerating for 20 randomly selected employees and decide you want to improve the ratings so you require thoseemployees to go through a new training program. you then wait a week and find the new average rating foreach employee. the average change is an increase in 1.3 stars with a standard devation of .9 stars.(a) is this data paired or not paired? (b) what are the null and alternative hypothesis being tested? (c) what is the t-statistic you would use? write the general formula and the final calculation.(d) sketch a t-distribution, label your t-statistic and the probability you would be interested in: