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A stone, of mass m, falls vertically downwards under gravity through still water. At time t, the stone has speed v and it experiences a resistance force of magnitude lmv, where l is a constant.  QUESTION:...

5x+6y=3 2x-3y=12 6y=3-5x 2x=12+3y 3y=2x-12 Therefore, 6y=2(2x-12)=4x-24 4x-24=3-5x 9x=27 x=3

The chain rule is a method that allows you to differentiate a function of a function, which can be of the form y = f[g(x)]. That is, g is a function of x and f is a function of g, which in turn is a funct...

Given 924 x 438 = 404712, we must consider the changes made to THIS question that leads to 9.24 x 43.8 924 => 9.24: we divide 924 by 100 to get 9.24
438 => 43.8: we divide 438 by 10 to get 43....

Find the values of y such that log₂(11y-3)-log₂3-2log₂y = 1

Power law: 2log₂y = log₂y²

Product law: log₂(11y-3) -...