3 years ago

What is 9b^2+25 ??? pls help

Mathematics

1 answer:

inna [77]3 years ago

4 0

It is a binomial expression, the sum of two squares.

_____

Roots of it are imaginary: b = ±(5/3)i.

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zysi [14]

Answer:

8 square units and $\frac{40}{3}$ square units

Step-by-step explanation:

The area of the triangle ABC is 24 square units.

1. Triangles ABC and FBG are similar with scale factor $\frac{1}{3},$ then

$\dfrac{A_{\triangle FBG}}{A_{\triangle ABC}}=\dfrac{1}{9}\Rightarrow A_{\triangle FBG}=\dfrac{1}{9}\cdot 24=\dfrac{8}{3}\ un^2.$

2. Triangles ABC and DBE are similar with scale factor $\frac{2}{3},$ then

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3. Thus, the area of the quadrilateral DFGE is

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and the area of the quadrilateral ADEC is

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