3 years ago

If 5(3x – 7 ) = 20, then what is 6x – 8? * 8 12 14 16

Mathematics

1 answer:

den301095 [7]3 years ago

5 0

Step-by-step explanation:

hope it helps............

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Your annswer is b

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The altitude of an equilateral triangle is 5 cm. what is the length of a side of the triangle?

Grace [21]

Answer:

The length side of the triangle is $\frac{10\sqrt{3}}{3}\ cm$

Step-by-step explanation:

we know that

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Let

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Applying Pythagoras theorem

$b^{2}=(b/2)^{2}+5^{2}\\\\ b^{2}-(b/2)^{2}=25\\\\ (3/4)b^{2}=25\\ \\b^{2} =25*4/3\\ \\b=\frac{10}{\sqrt{3}}\ cm\\ \\b=\frac{10\sqrt{3}}{3}\ cm$

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Answer:

Step-by-step explanation:

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The circumference of a circle is 50 inches. What is the radius?

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Step-by-step explanation:

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$\huge \red{ \frac{AC}{DF} }= \purple{ \frac{n}{28 \: cm}} \\$

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