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  1. down to earth

    Tricky word problem?

    I'm studying for the ACT and this was one of the practice test problems. The book does offer an explanation for how to get the answer but it isn't very detailed and I still don't know what I'm doing wrong. Homework Statement The larger of two numbers exceeds twice the smaller number by ##8##...
  2. down to earth

    Programs used for creating scientific diagrams/illustrations

    Would anyone happen to know what programs out there could be used to make this type of diagram/illustration? (image was found on this thread, btw) I've been wondering for a while as to how people make stuff like this, like the graphs they have in my math and science textbooks. I think knowing...