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#1 2006-03-13 03:51:32

V024
Guest

polynomial

The manager of a retail store has figured othat he rmonthly profit P (in thousands of $$) is determined by her monthly advertising expenses x(in tens of thousands of dollars) according to the formula P=x^3-20x^2+100x for 0<(or equal to) 0 <(or equal to) 4. For what value of x does she get 147,000 in profit?

#2 2006-03-13 03:54:27

George,Y
Member
Registered: 2006-03-12
Posts: 1,306

Re: polynomial

http://www.hostsrv.com/webmab/app1/MSP/quickmath/02/pageGenerate?site=quickmath&s1=equations&s2=solve&s3=basic


X'(y-Xβ)=0

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#3 2006-03-13 03:56:36

George,Y
Member
Registered: 2006-03-12
Posts: 1,306

Re: polynomial

above is the link of an online free math solver


X'(y-Xβ)=0

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#4 2006-03-13 03:57:23

V024
Guest

Re: polynomial

Thank you! smile

#5 2006-03-13 03:59:03

George,Y
Member
Registered: 2006-03-12
Posts: 1,306

Re: polynomial

Glad to help smile


X'(y-Xβ)=0

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