Find the area of the surface generated by revolving x equals t plus startroot 6 endroot, y equals startfraction t squared over 2 endfraction plus startroot 6 endroot t plus 1 , negative startroot 6 endroot less than or equals t less than or equals startroot 6 endroot about the y dash axis.

4. jake needs to score in the top 10% in order to earn a physical fitness certificate. the class mean is 78 and the standard deviation is 5.5. what raw score does he need? z value for top 10% =1.282 how do i get the z value? what is the equation for this? raw score =mean+z*sd = 78+1.282*5.5 = 85.051