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Why is it that when 'transformation A' is followed by 'transformation B', that the combined transformation is BA and not AB?

Remember that with matrix multiplication, "A times B" does not usually equal "B times A". If we take our 'matrix X' and transform it by 'matrix A'. We perform this transformation by calcu...
JD
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An atom of an element has the electronic structure 2,8,8,2. What is its atomic number?

20 2+8+8+2= 20
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Answered by Molly F. • Chemistry tutor
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What is a chain reaction?

When neutrons from one reaction fire off to cause further reactions.
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Answered by Molly F. • Physics tutor
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what type of microscope would you use to study living cells?

There are two main types of microscope: light microscopes are used to study living cells and for regular use when relatively low magnification and resolution is enough.
MF
Answered by Molly F. • Biology tutor
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Simplify (m-7)(m+3)/6(m+3)

Find the highest common factor between the brackets and then divide by this:in this case it is (m+3)so working out should look like this:(m-7)(m+3)/(m+3)/6(m+3)/(m+3)this will work out as:m-7/ 6
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Answered by Molly F. • Maths tutor
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