- 121x^2 SIMPLIFY?

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Pre calc i am stuck? In your views, will human be able to travel to around the distance of 5 light years in the outer space? If A = (27 m) x + (-12 m) y, and B = (2.0 m) x + (12 m) y, find the direction and magnitude of each of the following vectors: A, B, A+B? Witch number/symbol is the pound button? Can energy exist without motion?