Hi I am studying for this first physics test and having trouble.(adsbygoogle = window.adsbygoogle || []).push({});

heres the eqation im using to find x and im sure its right but i can't seem to get the answer they do

x=8.0m/s*5.0s +.5 * 3.0m/s^2 * (5.0s)^2 = 77.5

I am not getting the 77.5

8 *5 = 40

3.0 x 5.0 = 15

15 * .5 = 7.5

so 40 + 7.5 = 47.5

I have a feeling that it has something to do with the time being squared buy my algebra sucks.. can someone explain this solution.

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# Basic solution help

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