bonjour
aire colorée = ( 47 - x ) ( 23 - x )
= 1081 - 47 x - 23 x + x²
= x² - 70 x + 1 081
si x = 14.7
aire = 216.09 - 1 029 + 1 081
= 268.09 m²
Exercice 6 :
a.
[tex]A = (23-x)(47-x)\\A = (x-23)(x-47)[/tex]
b. Si [tex]x = 14,7m[/tex] , alors :
[tex]A = (x-23)(x-47)\\A = (14,7-23)(14,7-47)\\A = -8,3\times( - 32, 3 )\\A = 268,09\:\:m^2[/tex]
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bonjour
aire colorée = ( 47 - x ) ( 23 - x )
= 1081 - 47 x - 23 x + x²
= x² - 70 x + 1 081
si x = 14.7
aire = 216.09 - 1 029 + 1 081
= 268.09 m²
Exercice 6 :
a.
[tex]A = (23-x)(47-x)\\A = (x-23)(x-47)[/tex]
b. Si [tex]x = 14,7m[/tex] , alors :
[tex]A = (x-23)(x-47)\\A = (14,7-23)(14,7-47)\\A = -8,3\times( - 32, 3 )\\A = 268,09\:\:m^2[/tex]