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Mathematics 21 Online
OpenStudy (wade123):

@perl

OpenStudy (wade123):

i got 16

OpenStudy (perl):

distance should always be positive

OpenStudy (perl):

distance = integral | v(t)|

OpenStudy (wade123):

oh 3.00

OpenStudy (perl):

displacement = integral v(t) , note that i used absolute value bars

OpenStudy (wade123):

ohhh!

OpenStudy (wade123):

and the first one was correct?@perl

OpenStudy (perl):

displacement for first 3 seconds is 3 http://www.wolframalpha.com/input/?i=integrate+%28-t^2%2B4%29%2C+t%3D+0..3 distance for first 4 seconds is 16: http://www.wolframalpha.com/input/?i=integrate+abs%28-t^2%2B4%29%2C+t%3D+0..4

OpenStudy (wade123):

yay i got it right, thanks(:

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