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What is (18)^1/2 -(8)^1/2 simplified?

In order to answer this we will break down the two surds into their factors. So we know that 18 is 2 multiplied by 9 and so (18)^1/2=(9 2)^1/2 which cane be broken down into (9)^1/2 (2)^1/2 .We know that (9)...
HM
Answered by Hannah M. • Maths tutor
2898 Views

lord of the flies

Will fill in soon (at uni right now)
SP
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solve X^2-x-12=0

To solve this equation we will want to first factorise the expression into two brackets, and then see what value makes each bracket 0. transform X^2-X-12=0 into (X+c)(X+d)=0We do this by finding factor pairs...
BR
Answered by Blake R. • Maths tutor
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How many protons, neutrons and electrons are in a sodium ion?

11 protons, 12 neutrons and 10 electrons.
KJ
Answered by Kismet J. • Chemistry tutor
36453 Views

Evaluate the importance of Political parties to UK democracy

Political parties allow for greater cohesion within the UK parliament which in turn increases its ability to democratically decide on Policy. The requirement for any UK executive to command the confidence of...
MC
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