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Firstly, let's begin by rearranging the second equation so that we can get y on its own. Therefore we will get, y = 3x +13. Through substitution, we can do this:x²+ (3x +13)²= 25 . (...

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Consider the duty of the doctor - the doctor has to fully inform the patient of the benefits and risks of the treatment Autonomy - the doctor should respect the decision of the patient, howev...

Firstly, to find the stationary points of a curve you must differentiate the equation of the curve. To do this each x component is multiplied by its current power and then the power is decreased by one. A...

Both ser and estar mean ‘to be’ but each has different uses. This can be confusing for native English speakers because in English there is only one word. Ser is used when we want to describe characteristi...

Outsourcing refers to the third party production process undertaken by large, international firms. Rather than producing a product internally, firms will look to external manufacturers. An advantage of Ou...