<span>To find the beginning position, we need to know how many feet the climber has ascended in the 6-hour time frame. At the rate of 800 feet per hour, this would total to 4,800 feet in 6 hours (800 * 6). Subtracting this amount from the final position would give the elevation at the beginning of the ascent: (11600 - 4800) = 6,800 feet above sea level to begin.</span>
Answer:
6.71
You use pythagoras so you do:
6² + 3² = 45
square root 45 =6.71
The zeros of the function occur when the graph meet the x-axis so in this case the zeros occur at B ( 0 and 5)
