2 years ago

Rep viuen

Mathematics

1 answer:

Keith_Richards [23]2 years ago

7 0

Answer:

8 and -4

Step-by-step explanation:

8*-4=-32

8+(-4)=4

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The answer to the question provided is

$\frac{9}{5}$

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Ella bought some key chains and spent a total of $32. Each key chain cost the same whole-dollar amount. She bought between 6 and

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The length of each side of an equilateral triangle is increased by 20%, resulting in triangle ABC. If the length of each side of

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Answer: Area of ΔABC is 2.25x the area of ΔDEF.

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$A=\frac{\sqrt{3} }{4} a^{2}$

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Triangle ABC is 20% bigger than the original, which means its side (a₁) measures, compared to the original:

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Triangle DEF is 20% smaller than the original, which means its side is:

a₂ = 0.8a

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$A_{2}=\frac{\sqrt{3} }{4} (0.8a)^{2}$

$A_{2}=\frac{\sqrt{3} }{4} 0.64a^{2}$

Now, comparing areas:

$\frac{A_{1}}{A_{2}}= (\frac{\sqrt{3}.1.44a^{2} }{4})(\frac{4}{\sqrt{3}.0.64a^{2} } )$

$\frac{A_{1}}{A_{2}} =$ 2.25

The area of ΔABC is 2.25x greater than the area of ΔDEF.

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Step-by-step explanation:

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