document.write( "Question 46883: I really need some help with this question. Can anyone explain it to me?
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document.write( "The volume V of a square based pyramid with base sides s and height h is:\r
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document.write( "V = 1/3 s^2 h\r
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document.write( "If the height is half of the length of a base side, express the volume V as a function of s. \n" );
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Algebra.Com's Answer #31104 by fractalier(6550)![]() ![]() You can put this solution on YOUR website! We are given the formula for the volume \n" ); document.write( "V = 1/3 * s^2 * h \n" ); document.write( "Now this formula gives us the volume in terms of BOTH the side and the height. \n" ); document.write( "If we know the height is equal to half the side, we can write \n" ); document.write( "h = (1/2)s \n" ); document.write( "That allows us to substitute (1/2)s in for h in the original formula so that we have the volume in terms of ONLY the side...thus we get \n" ); document.write( "V = 1/3 * s^2 * h \n" ); document.write( "V = 1/3 * s^2 * (1/2)s \n" ); document.write( "V = (1/6)s^3 \n" ); document.write( " |