document.write( "Question 698736: (1)Solve the formula for the specified variable.
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document.write( " F = 9/5C + 32 for C
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document.write( "(2)Solve the formula for the specified variable.
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document.write( " A = 1/2h(a + b) for a
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document.write( "(3)Solve the formula for the specified variable.
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document.write( " d = rt for r
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document.write( "(4)Solve the equation by factoring.
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document.write( " 15x^2 + 26x + 8 = 0 \n" );
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Algebra.Com's Answer #431018 by vidya p(12)![]() ![]() ![]() You can put this solution on YOUR website! 1)Solve the formula for the specified variable. \n" ); document.write( " F = 9/5C + 32 for C \n" ); document.write( "Solution: \n" ); document.write( " F = 9/5C + 32 for C \n" ); document.write( "F - 32 = 9/5C \n" ); document.write( "hence C = 5(F - 32)/ 9\r \n" ); document.write( "\n" ); document.write( "(2)Solve the formula for the specified variable. \n" ); document.write( " A = 1/2h(a + b) for a \n" ); document.write( "Solution: \r \n" ); document.write( "\n" ); document.write( " A = 1/2h(a + b) for a \n" ); document.write( " 2A/h = ( a + b) \n" ); document.write( " 2A/h - b = a \n" ); document.write( "a= (2A-bh)/ h\r \n" ); document.write( "\n" ); document.write( "(3)Solve the formula for the specified variable. \n" ); document.write( " d = rt for r \n" ); document.write( "Solution: \n" ); document.write( "d = rt \n" ); document.write( "hence r= d/t\r \n" ); document.write( "\n" ); document.write( "(4)Solve the equation by factoring. \n" ); document.write( " 15x^2 + 26x + 8 = 0 \n" ); document.write( "Solution: \n" ); document.write( "here a=15 , b= 26, c = 8 \n" ); document.write( "ac = product = 15 * 8 \n" ); document.write( "find the two factors of 120 , such that there sum is 26 \n" ); document.write( "120 = 20 * 6 \n" ); document.write( "26 = 20 + 6 , \n" ); document.write( "therefore: 15x^2 + 26x + 8 = 0 \n" ); document.write( "15x^2 + 20x + 6x + 8 = 0 \n" ); document.write( "5x( 3x + 4) + 2( 3x + 4) =0 \n" ); document.write( "( 3x + 4) (5x+2)=0 \n" ); document.write( "3x+4= 0 , or 5x + 2 =0 \n" ); document.write( "x = -4/3 or x = -2/5 \n" ); document.write( " |