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Mathematics 18 Online
OpenStudy (anonymous):

need help on the attachment @MIT 18.01 Single …

OpenStudy (anonymous):

OpenStudy (anonymous):

Since that's a velocity vs time graph, integrate geometrically to find distance traveled from time t=3 to t=7. Add that distance to 50 yards.

OpenStudy (anonymous):

still not sure how to that

OpenStudy (anonymous):

???

OpenStudy (anonymous):

Something seems wrong. Even traveling at 6 yd/s the entire way through there is no way he got to any of those distances. What are the units on the graph?

OpenStudy (anonymous):

if you approximate the squares from t=0-3 you get 4.5 which means each square is 10 units

OpenStudy (anonymous):

multiply your answer by 10 xavier

OpenStudy (anonymous):

1square = 10 yards

OpenStudy (anonymous):

Ah got it, he has been traveling before t=3.

OpenStudy (anonymous):

hmm???

OpenStudy (anonymous):

So knowing each box is 10 yards, find the area between t=3 and t=7 by making triangles and other shapes. Add this value to 50

OpenStudy (anonymous):

Xavier, I wouldn't use triangles everything can be made into rectangles

OpenStudy (anonymous):

in which you can use the diagonal to explain that each half is equal

OpenStudy (anonymous):

so do I need count all the square between t=3 and t=7

OpenStudy (anonymous):

But there is that region above like t=5 where the square isn't cut in half. In any case, whatever works to find area

OpenStudy (anonymous):

yeah split from t4-t7 into two regions

OpenStudy (anonymous):

a perfect rectangle and the triangle, make a rectange with the triangle that the diagonal is the function and you divide by 2

OpenStudy (anonymous):

what about if the student walk for t0 to t10

OpenStudy (anonymous):

answer is 190 i mean

OpenStudy (anonymous):

just added wrong i have no calculator... 50+20+60+60

OpenStudy (anonymous):

distance from 0-10 = 200

OpenStudy (anonymous):

answer choices are 1. dist = 250 yards 2. dist = 220 yards 3. dist = 230 yards 4. dist = 270 yards 5. dist = 240 yards

OpenStudy (anonymous):

the answer choices are for the t0 to t10 question that you got 200 for

OpenStudy (anonymous):

??

OpenStudy (anonymous):

Outkast3r09 are you still there?

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