For time 0≤t≤10 , water is flowing into a small tub at a rate given by the function f defined by f(t)=arctan(π2−t10). For time 5≤t≤10 , water is leaking from the tub at a rate given by the function l defined by l(t)=0. 03(20t−t2−75). Both f(t) and l(t) are measured in cubic feet per minute, and t is measured in minutes. The volume of water in the tub, in cubic feet, at time t minutes is given by w(t).

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cause thats how the government is set up

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answer:

i havent taken the psat, but i have the sat, make sure to bring some snacks, because youre in there forever, 2 sharp number two pencils, an sat approved calculator, and maybe a jacket.   your phone and any books will be taken up, so don't try to bring them(but they will be given back at the end of the testing).   good luck!   i hope you do well!

answer:

low silica content, thick and fluid, forms dark colored rock

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