កំនែលំហាត់គណិតវិទ្យា ១២ កំរិតខ្ពស់

CMBUkTI2

edrIevénGnuKmn_

-R)ak;cMNaysrubkñúgkarplitsmÖar³ 20 eRKOgKW C( 20) = 2400 + 560 + 8 = 2968 Ban;erol .

-R)ak;cMNaysrubkñúgkarplitsmÖar³ 30 eRKOgKW C(10) = 2400 + 540 + 18 = 2958 Ban;erol .

x>)a:n;sμantémøRbEhlénR)ak;cMNaykñúgkarplitsmÖar³eRKOg TI 11 eRKOgTI 21 nig eRKOgTI 31 eKman C(x) = 2400 + 28x + 0.02x ¬KitCaBan;erol¦ 2

eK)an C' (x) = 28 + 0.04x

-témøRbEhlénR)ak;cMNaykñúgkarplitsmÖar³eRKOgTI 11 KW C' (11) = 28 + 0.04 × 11 = 28.44 Ban;erol.

-témøRbEhlénR)ak;cMNaykñúgkarplitsmÖar³eRKOgTI 21 KW C' ( 21) = 28 + 0.04 × 21 = 28.84 Ban;erol .

-témøRbEhlénR)ak;cMNaykñúgkarplitsmÖar³eRKOgTI 31 KW C' ( 31) = 28 + 0.04 × 31 = 29.24 Ban;erol. !#>eragBum<e)aHBum<TsSnavdþImYy)ancMNaysrubkñúgmYyExsRmab; e)aHBum<TsSnavdIþ x c,ab; Edl[tamGnuKmn¾ C(x ) = 0.0001x + x + 465 KitCaBan;erol ehIyeragBum<)anlk; 2

- 49 -