I can try to answer this to the best of my knowledge
so if angle A is 140 degrees) then
the other two angles *together* add up to 40 degrees)
so both B and C are less than 40.
that means their sides are less than the side opposite angle A
, so less than 3. But they tell you b is 10. hope it helps
Solve it like this. x + (x+1) + (x+2) + (x+3) = 286
4x + 6= 286
4x= 280
x = 70
70+71+72+73=286
Answer:
-3,n²,-n,14
Step-by-step explanation:
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