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2 years ago

I NEEDD HELPPP PLEASEE

Mathematics

2 answers:

Tresset [83]2 years ago

7 0

Answer:

108 cm

Step-by-step explanation:

You can cut off the piece sticking out and "attach" it to the other side to make a complete rectangle. From there, multiply 4.5 * 24. You should end up with 108 cm².

Gala2k [10]2 years ago

5 0

The answer to the question is 108cm

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$ax^2+bx+c=0$
if m and n are zeros, then:
$m+n=\dfrac{-b}{a}\ and\ mn=\dfrac{c}{a}$
We have:
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substitute
$m+n=\dfrac{-(-5)}{a};\ mn=\dfrac{c}{a}\\\\ \left\{\begin{array}{ccc}\dfrac{5}{a}=10&\to a=\dfrac{1}{2}\\\\\dfrac{c}{a}=10\end{array}\right$
substitute the value of a to the second equation:
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