Top answers

Write the number 0.000000001 in standard form.

1 x 10^-9
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Answered by Abigail H. • Maths tutor
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How are plant and animal cells different?

It's easy think about how they are different if you think about their different functions and environments. Let's think about the difference between the walls. Animal cells have a thin cell membrane whereas ...
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Answered by Anna H. • Biology tutor
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What are the main components of animal cells and plant cells?

Animal cells have a cell membrane, which surrounds the outside of the cell to maintain its shape and to keep the cell components inside. They also have a nucleus, which contains all of the genetic material o...
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Answered by Alina A. • Biology tutor
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Expand the brackets and simplify: 7(2x+3y)-x(14-y)

= 14x+21y-14x+xy =y(21+x)
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Answered by Ilan A. • Maths tutor
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simplify and rationalise 1/ sqrt(12)

Start by simplifying the denominator - We can write sqrt(12) as sqrt (4*3). - This can be written as sqrt(4) * sqrt(3) - We know the square root of 4 is 2. sqrt(3) is not a integer so we leave that as sqrt(3...
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