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A geometric sequence has all its terms positive. The first term is 7 and the third term is 28.

THIS IS FOR MATHS STUDIES, NOT MATHS SL The question is from the 2014 specimen paper First, find the common ratio:U1 = 7U3 = 28 (Identify Formula): Un = U1 x r^n-1 U3 = 7xr^3-1 28 = 7xr^2 r = 2 Then, find th...
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Answered by Lottie W. • Maths tutor
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Why did you choose to apply to Birmingham Medical School?

Birmingham Medical School is one of the largest and oldest Medical Schools – it takes 360 British students a year. The national student survey showed an impressive 91% satisfaction rate. There is patient inv...
MJ
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Give 3 ways in which aerobic respiration differs from anaerobic respiration in muscles.

Aerobic respiration uses oxygen/O2 while anaerobic respiration doesn't use oxygen.Aerobic respiration produces carbon dioxide/CO2 as a waste product while anaerobic respiration doesn't (it produces lactic ac...
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Answered by Sarah G. • Biology tutor
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Are living standards always lower in developing countries than developed countries?

Again, structure is really important here. Looking at why they might be lower:GDP per capitaInfluence of population growth Dependency ratios Life expectancySector employment (developing countries have more p...
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Answered by Lottie W. • Economics tutor
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Why is an Oxbridge Personal Statement different?

At Oxbridge, there is a considerable amount of desire to see 'super-curriculars' these include demonstrating knowledge in your chosen degree area that have extended outside the classroom, including: reading ...
LW
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