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wehack6380
23.03.2021 •
Mathematics
If p(x)=x2+2x-5 and qıx)=x-3, what is p(x) - g(x)?
A.2x² - 2
B.2x²-8
C.x²+x-2
D.x²+x-8
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Ответ:
C. x2+x-2
Step-by-step explanation:
Ответ:
We have three angles:
∠yxz=3x+5
∠xzy=180º-(8x-14)
∠xyz=4x
Therefore:
(3x+5º) + [180º-(8x-14º)]+(4x)=180º
3x-8x+4x=180º-5º-14º-180º
-x=-19º
x=19º
∠yxz=3x+5º =3(19º)+5º=62º
∠xzy=180º-(8x-14)=180º-(8(19º)-14)=42º
∠xyz=4x=4(19º)=76º
m∠yxz= 62º.