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This is something that many students struggle with but luckily it is simpler than it seems and once you know it, you know it! I like to use an example that I can refer back to if I get confused: Estaba le...

This question is to do with the refraction that occurs when a light ray hits a boundary between two media of different refractive index. We know that the relationship between the angle of incidence and an...

4x +7 = 13 4x = 6 x=6/4 x=3/2

Cystic Fibrosis is a recessive disease, therefore for Sally to have the condition she must have a homozygous recessive genotype, with one recessive allele of the gene from the mother and one from the fath...

To calculate the perimeter (the length of the outside edge) of a square, you must add up the length of each side. Here, we have been given the area of the square. The area of a square is calculated by squ...