After Dan makes a basket, Josephine claims she can find the amount of time the ball was in the air Josephine says she can do this by using dans equation (h(t) = -16t^2 + 18t +8) and setting the equation to 0. Dan doesn’t Josephine is correct.
Who do you agree with?
Explain your reasoning using mathematical evidence

Lisette takes an ela exam and got 16 out of 27 questions correct. what percentage of the questions did lisette get correct?

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:

Multiply and subtract these polynomials and simplify. enter your response in standard form (2x3 - 3x + 11) – (3x2 + 1)(4 – 8x)