3)

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6)

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7)

Answer:
a*2+b*2+c*2+d
Step-by-step explanation:
If i's meant to be Pythagorean theorem, a*a+b*b=c*c
Answer:
the X variable
Step-by-step explanation:
it's the same as any other function
Answer:
∡x = 74º
Step-by-step explanation:
∡x= 180º - 106 = 74º
Answer:
it depend on the question but if it is asking if they have the same answer then it is true
Step-by-step explanation: