Suppose that a4 = 0. prove that (i – a-1 = i + a+ a2 + a3. then, state an extension of this result where a = 0 for some positive integer k. hint: compute (i - a)(i + a + a2 + a3).

Can someone me and plz do the problem

Sketch the region enclosed by the given curves. decide whether to integrate with respect to x or y. draw a typical approximating rectangle and label its height and width. y= 5x, y=7x^2then find the area s of the region.

Type the correct answer in each box. use numerals instead of words. the average number of subscribers to an online magazine each year from 2010 to 2015 is given in the table below. the average number of subscribers to the online magazine in 2010 was the percent increase in the average number of subscribers in 2011 to the average number of subscribers in 2012 was %. the maximum average number of subscribers to the online magazine in the years shown was