Consider the two functions y1 - 3 and y2 = b on the interval [-a, a], if a 4 What value does b have to be in order for the area between y, and y2 and [-a, a], to equal 80.4? Round your answer to five decimal places.A palindrome is a word, such as "radar" reads the same forward and backward. How many different 15-letter palindromes are possible if they do not need to be real words and there are only 6 letters in the alphabet