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Why is my body temperature always 2 degrees lowers than the average body temperature? My body will even be 2 degrees lower during summer.? Find the value of x .(Sqrt 2x-1)-(sqrt x-4)=2? If ∠1 and ∠4 are a linear pair, are they congruent? If not why? I am having a hard time understanding the tangent line stuff. Can someone help me please? Thank you!? How are 3 chemical formulas for a medicine added togethr.?