In a right triangle with one angle measuring 70 degrees, the leg opposite the 70 degrees angle is 12cm. What is the length of the leg adjacent to the 70 degree

You use technology ans find a sum of 6.712e-8. write this sum in standard form

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:

Can someone convert these unlike fractions to equivalent like fractions and add them. and i have to use the lcd to get the answer correct. if possible, reduce the final sum.