Why do we need to study music as an academic discipline? it is because music is 选择一项或多项 0a. the emotional history of human race bour everyday leisure activity c. the imaginational history of human race d. the symbol of identity and value of people

What statistics are to determine the development of a nation?

If you could drill a hole straight to the center of the earth, and keep track of what the hole is going through, youwould find: a) you would go through one sort of material, and then a different, denser material, and then a still-different, still-denser material, because the planet is made of concentric layers, sort of like an onion.b) you would go through one sort of material all the way to the center, because the planet is all mixed up.c) if your hole started at the north pole, you would go through different layers of different materials, but ifyour hole started at the equator, you would go through one sort of material all the way to the center.d) if your hole started at the equator, you would go through different layers of different materials, but if yourhole started at the north pole, you would go through one sort of material all the way to the center.e) you would strike diet pepsi when you got to the center.

Triangle xyz is translated 4 units up and 3 units left to yield triangle x'y'z' what is the distance between any two corresponding points on triangle xyz and trianglex'y'z' ?