One reason for the increase in human life span over the years has been the advances in medical technology. The average life span for American women from 1907 through 2007 is given by

W(t) = 49.9 + 17.1 ln t (1 ? t ? 6)

where W(t) is measured in years and t is measured in 20-year intervals, with

t = 1

corresponding to 1907

The verbal translation for the difference of m and 7 increased by 15

Afarmer has a large field that is x feet in length. he wants to fence in a rectangular section in the middle of the field , leaving a length of 100 feet of open field behind each end of the fenced rectangle.he also wants the width of the fenced-in space to be 100 feet less than its length. find the expressions to represent the length and width of the fenced section of the field

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