Mathematics
18.03.2021 00:00
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Arectangular greenhouse has an area of 6,480 square meters. its length is 120 meters.
Arectangular greenhouse has an area of 6,480 square meters. its length is 120 meters. the width of the greenhouse meters. if each flower bed needs an area of 240 square meters, the whole greenhouse can flower beds.
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johnkings140
5,0(18 marks)
Rea = 120 length is 7 more widthLet l= length,w=width(write equation) A= l x w (w+7)(W)=120
w^2+7w -120=0(-8)(15)=-120(-8)+15=7factor(x-8)(x+15)x= 8 or x= -15the measure can't negative then x= 8 it correct answer
w^2+7w -120=0(-8)(15)=-120(-8)+15=7factor(x-8)(x+15)x= 8 or x= -15the measure can't negative then x= 8 it correct answer
shelseamorrrow2411
4,4(6 marks)
The right answer is a
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