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need help solving for a variable

 
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Sep16-06, 12:14 AM   #1
 

need help solving for a variable

can someone show the steps to go from
Here:


To Here:
 
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Sep16-06, 12:19 AM   #2
 
Quote by Joules23
can someone show the steps to go from
Here:


To Here:
Recall the quadratic equation,

[tex] x = \frac{-b \pm\sqrt{b^2-4ac}}{2a} [/tex]

In the expression you have, note:
[tex] a = \frac{1}{2}a_y [/tex]
[tex] b = v_0 [/tex]
[tex] c = -y [/tex]
 
Sep16-06, 12:26 AM   #3
 
ahhh OK, thanks for that
 
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