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As the object leaves the surface of the planet, it loses kinetic energy and gains gravitational potential energy. Through conservation of energy we know the loss of kinetic energy must be equal to the gai...

To do this we need to find a common denominator. We have an (x + 3) on the right hand side and a difference of two squares ((x^2)-9) on the left hand side. So factorising what looks more complicated is fi...

Human rights are rights that people are entitled to by the virtue of being human. They are said to be indivisible, absolute, fundamental, and universal. These rights are either positive rights (usually ‘f...

The first step is to make sure that everything has the same base, so you can equate the powers. For example if you have an equation 2² = 2^x you know that x must equal 2. So with this...

Since L is parallel to 4x-2y=8, it means that both lines have the same gradient. (Reminder: in y=mx+c, m is the gradient)4x-2y=8, therefore 2y=4x-8, and dividing both sides by 2 results to y=2x-4. Therefo...