Hello,
y=x²-10x+7=x²-2*5x+25-25+7=(x-5)²-18
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<span>x-y=2y -> x=3y and
3x-40+2y=180 --> 9y-40+2y=180 --> 11y=220 --> y=20, x=60 --> <A=<C=140 degrees, <B=<D=40 degrees.</span>
Answer:
The anwser would be 51 i think
Step-by-step explanation:
if im right ls makr brainliest
Answer:
9 answer ok like floow on