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Bottom end of cylinder = 1.5²x pi = 7.07cm²Cylinder shaft surface area = 3 x pi x 15 = 141.4cm²Top end of cylinder exposed = 0 Base of pyramid exposed = (4 x 4) - 7.07 = 8...

"Mean" stands for "average", so if you add the mass of all the players together, then divide by the amount of players, you get 82kg. [ (number of players) x (mean mass) = (sum of mass)...

Make y the subject of equation 1:y = 2x - 1Substitute this value of y into equation 2:3x + (2x - 1) = 14Simplify:5x - 1 = 14Solve for x:x = 3Substitute this value of x into original equation:2(3) - y = 1S...

x=1y=2
x= -29/11y=2/11

v² = u² + 2as. The question is asking us to make s the subject of the formula and so we must find the equation equal to s. The golden rule of the rearranging topic is whatever you do...