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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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The expression simplifies to \frac{4(x+2)}{5(x-1)}.

Step-by-step explanation:

The expression

\frac{2(x+3)}{x(x-1)} *\frac{4x(x+2)}{10(x+3)}

can be rearranged and written as

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In this form the (x+3) terms in the numerator and in the denominator cancel to give

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The x's are present both in the numerator and in the denominator, so they also cancel, and the fraction \frac{8}{10} simplifies to \frac{4}{5}, so finally our expression becomes:

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F(x)=x^2+16<br><img src="https://tex.z-dn.net/?f=f%28x%29%20%3D%20x%5E%7B2%7D%20%20%2B%2016" id="TexFormula1" title="f(x) = x^{2
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