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A scientist uses the rule C(t) = 2t^2  9t  1 to measure current in a wire. At what time t in seconds (t is greater than or equal to 0) will the current be 4 amps?
 one year ago
 one year ago
A scientist uses the rule C(t) = 2t^2  9t  1 to measure current in a wire. At what time t in seconds (t is greater than or equal to 0) will the current be 4 amps?
 one year ago
 one year ago

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xRAWRRx3Best ResponseYou've already chosen the best response.0
I got up to 5 = 2t^2  9t.
 one year ago

mark_o.Best ResponseYou've already chosen the best response.1
ok use 2t^2  9t.5=0 and solve for t
 one year ago

xRAWRRx3Best ResponseYou've already chosen the best response.0
OHHH . Omigosh i must be retarded. THANK YOUUUUU ~
 one year ago
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