81. Sales analysis. A company’s total sales (in millions of dollars) t months from now are given by S1t2 = 21t + 10 (A) Use the four-step process to find S′1t2. (B) Find S(15) and S′1152. Write a brief verbal interpretation of these results. (C) Use the results in part (B) to estimate the total sales after 16 months and after 17 months.

Sam makes his sales calls according to a pattern. he travels either north or south depending on the calendar. some of his past trips were as follows: on february 17, april 24, june 10, september 19, and november 3 he drove north. on february 28, may 25, august 22, november 20, and december 18, he drove south. describe sams' pattern. in which direction will sam drive on oct4 and oct 24?

If the endpoints of the diameter of a circle are (8, 6) and (2,0), what is the standard form equation of the circle? a) (x + 5)2 + (y + 3)2 = 18 (x + 5)2 + (y + 3)2 = 3.72 (x - 5)2 + (y - 3)2 = 18 d) (x - 5)2 + (y - 3)2 = 32

In which direction does the left side of the graph of this function point? a(x) = 3x - x2 + 4x - 2