What is the length of AB? Round to the nearest tenth.
8
10 m
1750

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Ответ:

nsuleban5016

12.09.2022

Mathematics

9 units.

Step-by-step explanation:

Let x be the width of the rectangle .

Then, the length would be x-5.

Area of rectangle = Length x Breadth

=(x-5)x=x^2-5x

Since , The area of the rectangle is 36 units.

$\Rightarrow\ x^2-5x=36\\\\\Rightarrow\ x^2-5x-36=0\\\\\Rightarrow\ x^2-9x+4x-36=0\\\\\Rigtarrow\ x(x-9)+4(x-9)=0\\\\\Rightarrow\ (x-9)(x+4)=0\\\\\Rightarrow\ x=9 , -4$

But width cannot be negative , so width = x= 9 units

Hence, the width of the rectangle = 9 units.

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What is the length of AB? Round to the nearest tenth. 8 10 m 1750