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Afina-wow [57]
3 years ago
6

Find the value of c that makes the expression a perfect square trinomial x^2+15x+c​

Mathematics
1 answer:
Trava [24]3 years ago
8 0

Answer:

-100

Step-by-step explanation:

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Answer:

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Step-by-step explanation:

Hi!

Remember, the sum of the angles on a straight angle is 180 degrees. Additionally, the sum of the measures of a triangle are 180 degrees.

Now, let's label the angles of the given triangle.

<DCE = y and <CDE=x

x+y+92=180

x+y= 88

Now, y+140 = 180 --> y= 40

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x=48

The answer is 48 degrees.

Hope this is correct! Have a good day!

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