2 years ago

HELP!

Mathematics

1 answer:

artcher [175]2 years ago

6 0

Answer:

B.Obtuse

as shown in the pictures that you put the angel is obtuse

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Suppose y varies directly as x, and y = 21 when x = 3. Find x when y = 42.

nata0808 [166]

Answer:

x = 24

Step-by-step explanation:

y₂ - y₁

42 - 21 = 21

x + 21

3 + 21 = 24

So when y increases by 21, so does x.

x = 24

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3 years ago

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NISA [10]

Answer:

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Instead of dividing both sides by 5, it is multiplied

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see the attached figure to better understand the problem

we know that

The equilateral triangle has three equal sides

in the equilateral triangle ABC

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the height of the triangle is the segment BD

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$BC^{2} =BD^{2}+DC^{2}$

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$BD^{2}=BC^{2}-DC^{2}$

substitute the values

$BD^{2}=16^{2}-8^{2}$

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$BD=\sqrt{192}\ units$

therefore

<u>the answer is</u>

the height of the triangle is $\sqrt{192}\ units$

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