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Increase in temperature:Sweat produced from sweat glands increases energy transfer away from the body when it evaporates.Vasodilation of blood vessels close to the surface of the skin, which increases energy...

Find two numbers that multiply to give 2 and add together to give 3: 1 and 2 Factorise: (x+2)(x+1)=0 The solutions are x= -2 and x= -1 Explanation: Brackets means you multiply, this means that when (x+2) and...

2 unknowns? Let's make it into a simpler equation you know how to solve with only one unknown! How? Key is to note that you can add and subtract equations. You can also multiply the equations by some constan...

When looking at the two equations we can see that the 'y' terms in both equations are the same, but with the opposite sign. This means that by adding the two equations we can eliminate the 'y' values. Step 1...

If angle = 50 degrees, hypotenuse = x, adjacent side = 5 cm, opposite side = 7 cm, and is a right angled triangle,Use cos(theta)=adjacent/hypotenuseSo, cos(50) = 5/xrearranging the equation to make x the sub...