document.write( "Question 1112312: Good evening, i need home help. it is due today. thanks!\r
\n" ); document.write( "\n" ); document.write( "Callaway Golf Company has determined that the cost, C, of manufacturing x golf clubs may be expressed by the quadractic function: C(x)=4.9x^2-617.4x+19600\r
\n" ); document.write( "\n" ); document.write( "a) how many clubs should be manufactured to minimize the cost\r
\n" ); document.write( "\n" ); document.write( "b) at this level of production, what is the cost?
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Algebra.Com's Answer #727358 by KMST(5328)\"\" \"About 
You can put this solution on YOUR website!
A quadratic function can be written in the form
\n" ); document.write( "\"f%28x%29=ax%5E2%2Bbx%2Bc\" ,
\n" ); document.write( "with constants \"a\" , \"b\" , and \"c\" and \"a%3E0\" ,
\n" ); document.write( "and has a minimum at
\n" ); document.write( "\"x=%28-b%29%2Fa\" .
\n" ); document.write( "In the case of \"C%28x%29=4.9x%5E2-617.4x%2B19600\" ,
\n" ); document.write( "\"a=4.9\" , \"b=-617.4\" and \"c=19600\" ;
\n" ); document.write( "the minimum occurs at \"x=617.4%2F%282%2A4.9%29=617.4%2F9.8=highlight%2863%29\" ,
\n" ); document.write( "and at that point the value of the function is
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\n" ); document.write( "So, the minimum of \"C%28x%29\" occurs at \"highlight%28x=63%29\" , and is \"highlight%28C%2863%29=151.9%29\" .
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\n" ); document.write( "In reality, it does not make sense for \"C%28x%29=4.9x%5E2-617.4x%2B19600\"
\n" ); document.write( "to be the total cost of manufacturing \"x\" golf clubs.
\n" ); document.write( "It seems more believable that \"C%28x%29=4.9x%5E2-617.4x%2B19600\" could be the cost per club to manufacture \"x\" golf clubs.
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