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Answers Quiz 7

Answers Quiz 7 - | r r t t l l t t r z x c(6 = Y(t 5=...

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5"1,r f io,-' Quiz 7 MAC 2233 (Business Calculus) Name: Show the steps of your work. 02/o8/2OLt Panther ID: 1) [7pts] The cost of producing r units of a product is C(c) : f;r2 +5r-173 dollars and the price of selling one unit is pt : -rz - 4r * 80. a) Find the marginal "o), , ., I n +s d.ollurs ?e{ u hJ l. ctx) --frv, b) Find the marginar revenlful -Qe,tute -- (14rc.ltl, I (pti e\ , X (-f-qxr do) d"llurs t-)-==--=- = -x3'- uY'ltox Mourg."[ {o,lo-e=W rt\"\lo<S lQr vniV c) Estimate the cost of producing the 7 th unit.
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Unformatted text preview: , , | , , - r r / - - t t l l - , t t r z x c'(6) = Y(t)+5= ll,6-t fulftn'> 6>2t rt'|v I d) What is the actual cost of producing the 7 th unit? Ctr) -c(6) = \tt--r:) 1),13 - tL a\r16a 2) [3pts] Find the intervals on which f (r): -4r3 +3r2 + I8r - 2 is increasing or decreasing. f''cn) = -tZx'r 6x+tt -- -6(r*- x -)) : -G (?;,e)[xrr) S: ?(tx)=o iP ZX-t-*o or x1t=e Xtlv x = -l +9(t-t) + fis Fit lnCfla3lnS on (-,,Lr\ d,ecreas:^,U o* (-o'r-l ) U(i.,*) '1')-lB t'&\---qt...
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