For purposes of this exercise, we will think of the Mississippi River as a straight line beginning at its headwaters, Lake Itasca, Minnesota, at an elevation of 1475 feet above sea level, and sloping downward to the Gulf of Mexico 2340 miles to the south. (Round your answers to two decimal places.) (a) Think of the southern direction as pointing right along the horizontal axis. What is the slope of the line representing the Mississippi River? ft/mi (b) Memphis, Tennessee, sits on the Mississippi River 1982 miles south of Lake Itasca. What is the elevation of the river as it passes Memphis? (c) How many miles south of Lake Itasca would you find the elevation of the Mississippi to be 200 feet? mi Need Help? Read It Watch It Submit Answer 7. [-/1 Points] DETAILS MY NOTES CRAUDCOLALG6 3.1.SB.005. PRACTICE ANOTHER The base of a ladder is 3 horizontal feet from the wall where its top rests (see figure). The slope of the line made by the ladder is 8.5. What is the vertical height of the top of the ladder? (Assume that the positive direction points from the base of the ladder toward the wall.) ft height -3 f1- Need Help? Read It Submit Answer 8. [-/1 Points] DETAILS MY NOTES CRAUDCOLALG6 3.1.SB.008.MI. PRACTICE ANOTHER A ladder leans against a wall so that its slope is 3.5. The top of the ladder is 14 vertical feet above the ground. What is the horizontal distance from the base of the ladder to the wall? (As direction points from the base of the ladder toward the wall)