Answer:
What is the the given line?
Explanation:
Answer:
Step-by-step explanation:
90x - 60y = 68.....multiply by -1
90x - 70y = 91
---------------------------
-90x + 60y = -68 (result of multiplying by -1)
90x - 70y = 91
---------------------------add
-10y = 23
y = -23/10 <===
90x - 60y = 68
90x - 60(-23/10) = 68
90x + 138 = 68
90x = 68 - 138
90x = - 70
x = -70/90
x = -7/9 <=====
Step-by-step explanation:


and,

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☆Find the 

Here,
BC =AC
so,
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we know that,

But
(Ģìvéñ)
so..







But...

soo,


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11 is your answer because 11* 11 is 121