Determine between which consecutive integers the real zeros of f(x) = 2x^4 + x^2 – 3x + 3 are located.
a between-1 & 0
C. between 1&2
b. between 0&1
d. no real zeros

Which graph represents the equation y =4x

Find the distance between (7,-6) and (-3,-9)

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: