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The Vena Cava carries de-oxygenated blood from the body to the right-side of the heart. The Pulmonary Artery then carries de-oxyge...
Momentum is conserved in any collision, and for a single body is given by p = mv. The momentum before is m1v1+m2v2, and the momentum after is (m1 + m2)u where u is the final velocity, so the ...
We first multiply both sides of the equation by (3y+4) to get x(3y+4)=2y+1. We then expand the left hand side to get 3xy+4x=2y+1. By rearranging the equation we get 3xy-2y=1-4x. We then factorise the left...
First we need to draw our two brackets where the terms will go, we set them out like so ( )( ). Now looking at the coefficient of the x squared term, we se that it is one, therefore, it is formed by a mul...
A quadratic equation ax2 +bx+c=0 will have only one unique solution if and only if b2-4ac=0. If we apply this to the equation in the question, we get that k2-24=0. If we s...
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