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AnnyKZ [126]
3 years ago
11

Please help! (85 points)

Mathematics
2 answers:
allochka39001 [22]3 years ago
8 0
Recall that all three angles in a triangle equals 180.
Knowing this, we just have to add up all the angles and figure out what the value 'x' is.

(x-22 + x-17 + 3x+19) = 180
Simplify:
5x - 20 = 180
Add 20 to both sides:
5x = 200
Divide both sides by 5:
x = 40

Now that we found the value for x, we need to solve for angle A.
Simply input the value of 'x' into angle A's equation:
40 - 22 = 18

Angle A = 18 degrees

Good luck! If you need me to explain anything, just ask :))
-T.B.
Talja [164]3 years ago
4 0

Answer:

The answer is A=18

Step-by-step explanation:

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x >  \frac{5}{3}
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Factor: 2n2 - 11n + 15
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2n2-11n+5

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(2n-1)(n-5)

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