Answer:
Variant c
Step-by-step explanation:
c²=4*9
c=6
You can apply phyphagor
b²=6²+9²=36+81=117

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➷ Substitute it into the equation:
3 = 2x + 5
Subtract 5 from both sides:
-2 = 2x
Divide both sides by 2:
x = -1
The other coordinate is -1
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B and C make sense to me.
Answer:
r=sqrt45
Step-by-step explanation: