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xRAWRRx3 Group Title

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
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  1. saifoo.khan Group Title
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    Replace C with 4.

    • one year ago
  2. xRAWRRx3 Group Title
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    and then?

    • one year ago
  3. xRAWRRx3 Group Title
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    I got up to 5 = 2t^2 - 9t.

    • one year ago
  4. mark_o. Group Title
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    ok use 2t^2 - 9t.-5=0 and solve for t

    • one year ago
  5. xRAWRRx3 Group Title
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    OHHH . Omigosh i must be retarded. THANK YOUUUUU ~

    • one year ago
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