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13 Nov 2019
(1 point) A person walking along a straight path has her velocity in miles per hour at time t given by the function v(t) 0.25t3 - 1.5t2 +3t 0.25, for times in the interval 0t function is also given in each of the three diagrams below 2. The graph of this mph mph mph y = v(r) y= v(t) A4 B3 hrs rs hrs Al 1 Note that in each diagram, we use four rectangles to estimate the area under y three individual graphs (t) on the interval [0, 2], but the method by which the four rectangles' respective heights are decided varies among the Think about how the heights of the rectangles in the left-most diagram are being chosen. Determine the value ot S AA2 As +A by evaluating the function y v(t) at appropriately-chosen values and observing the width of each rectangle. Note, for example, that A3 ()1 s= Use the rectangles in the middle diagram to find the value of T-B B2BB Use the rectangles in the right-most diagram to find the value of UC++C4 Which estimate do you think is the best approximation of D, the total distance the person traveled on 10, 21? why?
(1 point) A person walking along a straight path has her velocity in miles per hour at time t given by the function v(t) 0.25t3 - 1.5t2 +3t 0.25, for times in the interval 0t function is also given in each of the three diagrams below 2. The graph of this mph mph mph y = v(r) y= v(t) A4 B3 hrs rs hrs Al 1 Note that in each diagram, we use four rectangles to estimate the area under y three individual graphs (t) on the interval [0, 2], but the method by which the four rectangles' respective heights are decided varies among the Think about how the heights of the rectangles in the left-most diagram are being chosen. Determine the value ot S AA2 As +A by evaluating the function y v(t) at appropriately-chosen values and observing the width of each rectangle. Note, for example, that A3 ()1 s= Use the rectangles in the middle diagram to find the value of T-B B2BB Use the rectangles in the right-most diagram to find the value of UC++C4 Which estimate do you think is the best approximation of D, the total distance the person traveled on 10, 21? why?
Sixta KovacekLv2
11 Jan 2019