A diagram of a lot of land is shown. The scale on the diagram is 1 cm represents 2.5 yrds. What is the perimeter of the actual lot of land?

Write an equation of the line given the two points below (write your equation in slope-intercept form, y=mx+b): (-4, 4) and (6, -4)

How do you use the elimination method for this question? explain, because i really want to understand!

Aball is thrown from a height of 139 feet with an initial downward velocity of 15 ft/s. the ball's height h (in feet) after t seconds is given by the following. h=139-15t-16t^2 how long after the ball is thrown does it hit the ground? round your answer(s) to the nearest hundredth. (if there is more than one answer, use the "or" button.) t =