Please help me idk this

Mathematics

1 answer:

V125BC [204]3 years ago

4 0

You can break it down into a bunch of squares and rectangles. Find those areas and add them up.

The total area is :
7*10 + 5*5 + 4*12 = 143

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The area of a rectangle is 65 m2 , and the length of the rectangle is 3 m less than twice the width. find the dimensions of the

salantis [7]

X = <span>width
2x-3 = </span><span>length

</span> $x(2x-3) = 65\\
2x^2 - 3x - 65 = 0 \\ D=b^2-4ac=(-3)^2-4*2*(-65)=529\\
x_{1,2}= \frac{-bб \sqrt{D} }{2a}= \frac{3б 23}{4} \\ x_1=-5 \ \ \O \\ x_2=6.5 \ \$

width = 6.5 m
length = 2x-3 = 2*6.5 - 3 = 10 m

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3 years ago

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Tpy6a [65]

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