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lunamoon1
29.07.2019 •
Mathematics
The length of a rectangle is 55 meters less than 44 times the width. if the perimeter is 150150 meters, find the length and the width of the rectangle.
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Ответ:
Width : x
Length : x-44 (from the 1st sentence of question)
So, We all know that a rectangle has 2 Lengths and 2 widths. So we can derive the conclusion that,
2(x)+2(x-44)=150150
2x+2x-88=150150
4x-88= 150150
4x= 150150+88=150238
4x=150238
x= 150238÷4
=37559.5
Ответ:
(i) f(-3) = (-3)^2+2(-3)+1
So
9-6+1=10-6=4
(ii)f(5)= (5)^2+2(5)+1
so
25+10+1=36
(iii) Please check this question if it's correct or not