document.write( "Question 267795: The cost for burning a 75 watt bulb is given by the function c(h), where h represents the number of hours that the bulb burns. \r
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document.write( "(a) How much does it cost to burn a 75 watt bulb for 3 hours per night for a 28 day month? Express your answer to the nearest cent.
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document.write( "(b) Graph the function c(h) = 0.0055h. (Do this on paper. Your instructor may ask you to turn in this graph.)\r
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document.write( "(c) Use the graph in part (b) to approximate the cost of burning a 75 watt bulb for 295 hours. (Express your answer to the nearest tenth of dollar.)
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document.write( "(d) Use c(h) = 0.0055h to find the exact cost, to the nearest cent, of burning a 75 watt bulb for 295 hours.
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Algebra.Com's Answer #196454 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! The cost for burning a 75 watt bulb is given by the function c(h) = 0.0055h, where h represents the number of hours that the bulb burns. \n" ); document.write( "---------------------------- \n" ); document.write( "(a) How much does it cost to burn a 75 watt bulb for 3 hours per night for a 28 day month? Express your answer to the nearest cent. \n" ); document.write( "c(3*28) = 0.0055(3*28) = $0.462 \n" ); document.write( "---------------------------------- \n" ); document.write( "(b) Graph the function c(h) = 0.0055h. (Do this on paper. Your instructor may ask you to turn in this graph.) \n" ); document.write( " \n" ); document.write( "------------------------------------------------ \n" ); document.write( "(c) Use the graph in part (b) to approximate the cost of burning a 75 watt bulb for 295 hours. (Express your answer to the nearest tenth of dollar.) \n" ); document.write( "$ \n" ); document.write( "(d) Use c(h) = 0.0055h to find the exact cost, to the nearest cent, of burning a 75 watt bulb for 295 hours. \n" ); document.write( "c(295) = 0.0055(295) = $1.62 \n" ); document.write( "=================================== \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( "$ \n" ); document.write( " \n" ); document.write( " |