Question

Help please! (:

Problem pasted below.

Answer 1

distance = speed x time

integrating the varying speed gives u distance travelled

Answer 2

distance travelled using left endpoints :
2(100 + 80 + 50 + 25 + 10)

distance travelled using right endpoints :
2(80 + 50 + 25 + 10 + 0)

Answer 3

compute them,

for partb, you can make a decision based on above result

Answer 4

how'd you get 2 to multiply with the sum of the left/right points? @ganeshie8

Answer 5

2 is the time interval

Answer 6

actually i didnt show one step

Answer 7

distance travelled using left endpoints :
2*100 + 2*80 + 2*50 + 2*25 + 2*10

Answer 8

(time interval) x (speed recorded for that interval)

Answer 9

add up all the distances, to get the total distances

Answer 10

so 200+160+100+50+20= 530 for left end points?