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dusya [7]
2 years ago
11

Please help!! Need an explanation by tomorrow and I am super confused!

Mathematics
1 answer:
vovangra [49]2 years ago
7 0

Answer:

x = 35

y = 7

Step-by-step explanation:

See how the image looks like two overlapping triangles. It is given that the triangles are congruent. Its easier to see whats what if you draw the triangles separately. I also flipped over the triangle on the right so they match. Record the given angle measures. Since A is 45° then D is also 45°. DBC is 30°, so we can find the missing angle in triangle DBC. Angles in a triangle add up to 180° so

C + 45 + 30 = 180

C + 75 = 180

C = 105°

This is angle DCB.

Now all the angles are marked. We can set up equations to find x and y. see image.

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Answer:

The answer is "7x^2 +10x -7"

Step-by-step explanation:

Let the given value is:

\to \bold{-2x +8x -9 +4x +7x^2 +2}\\\\

Solving the given value:

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6 0
2 years ago
Which situation is represented by the inequality? 3x + 5 > 2x + 15
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<span>3x + 5 > 2x + 15
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3 years ago
Can someone please help, ty!!<br> Will mark brainliest!
PolarNik [594]

The sum of the interior angles of a triangle is 180 degrees. Therefore, if we add up all of these angles, they will equal 180.

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Hope this helps!! :)

5 0
2 years ago
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Answer:

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Step-by-step explanation:

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