answer any of these 1. In the straightaways each lane is a rectangle what is the area and perimetee of each lane in the straightaways? What is the area and perimeter of the larger rectangle made up of the six lanes in one of the straightaways? 2. What is the area of the inner field? What is the area of the entire track (the inner field and the lanes)? Use 3.13 for (pi) and round your answer to the nearest hundredth. 3. What is the perimeter of the entire track? Use 3.14 for (pi) and round your answer to the nearest hundredth. Explain your reasoning. ​

What is the common difference for this arithmetic sequence? -6,-2,2,6,10 a.4 b.5 c.3 d.6

Javier bought a painting for $150. each year, the painting's value increases by a factor of 1.15. which expression gives the painting's value after 77 years?

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: