document.write( "Question 423680: A triangle sail has an area of 76 square feet. Find the base and the height if the height measure is three more than twice the base. (use formula A= 1/2 bh) \n" ); document.write( "
Algebra.Com's Answer #295465 by mananth(16946)\"\" \"About 
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base == b
\n" ); document.write( "h= 3+2b
\n" ); document.write( "76 = 1/2 *b*(3+2b)
\n" ); document.write( "152= 3b+2b^2
\n" ); document.write( "2b^2+3b-152=0
\n" ); document.write( "2b^2+19b-16b-152=0
\n" ); document.write( "2b(b+9.5)-16(b+9.5)=0
\n" ); document.write( "(b+9.5)(2b-16)=0
\n" ); document.write( "2(b+9.5)(b-8)=0
\n" ); document.write( "so b= 8 which is positive.\r
\n" ); document.write( "\n" ); document.write( "base = 8 ft
\n" ); document.write( "and height = 3+2b= 19 ft
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