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An electric bulb is marked 220v60w. An ammeter in the circuit shows the bulb uses a current of 0.2727A. The bulb burns for an
1. 1 answer
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Solve. For x1. 3x^2-6=0 2. 1/x (6x^3+5x^2)=21 3. x/2+6=-10/x 4. 2x^2=14x
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