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Firstly, to expand the brackets, we can use the FOIL method to multiply them out.First - multiply the first numbers of each bracket. 3x * 4x = 12x^2Outer - multiply the outer numbers of each...

if you are looking at a far away object, your eyes don’t need to refract the light too much in order to focus it onto the retina. So in this case the lens shape should be flat instead of fat. And how this...

Total wage each week= £420. In one week, he saves 15% of this: 15% of 420 is 0.15 x 420 = £63. So he saves £63 in one week. To calculate the total number of weeks it takes to save up for the phone, divide...

Maguire et al. (2000) looked at MRI scans of London taxi drivers. These drivers had to undergo extensive navigational training, known as ‘The Knowledge’ before they became drivers. It was found that, comp...

Recording and broadcasting technological progress during the twentieth century has allowed many more people to hear differing performances of all kinds of music, amongst them 'early music'. Though such mu...