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If a rectangle has sides (x+3) and (2x-1) and an area of 15, find x and the length of each side.

To find x, we need to create an expression from the information given. We know the area is 15 and that the area is equal to the length multiplied by the width. This gives us:(x+3)(2x-1) = 15Then we can expan...
JL
Answered by Jasmin L. • Maths tutor
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Enzymes are proteins. Antarctic fish may have different structure of enzymes to non-antarctic fish. Explain how their enzyme structure may be different.

Enzymes would have different sequence of amino acids and therefore different primary structure. This would result in different shape of a protein ie their tertiary or, if present, quaternary structure.
DR
Answered by Daria R. • Biology tutor
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Work out: 3 ½ – 2 ⅓ Give your answer as a improper fraction

3 ½ = 7/22 ⅓ = 7/3To add or subtract 2 fractions, the denominator (bottom number) must be the same. To create a common denominator we can multiply the first fraction by 3 and the second by 2.This gives us 7/...
MS
Answered by Mai S. • Maths tutor
8562 Views

Describe how the small intestine is adapted for the absorption of nutrients

The small intestine has several adaptations to facilitate the absorption of nutrients: a short diffusion distance (single layer of epithelium) to maximise absorption, a good blood supply to rapidly transport...
TC
Answered by Tashi C. • Biology tutor
5207 Views

How can I write an impactful introduction?

The introduction is the starting point of an essay and when attempting to present a strong argument it is important that you begin with an impactful introduction. The purpose of an introduction is to summari...
MS
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