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The objective for this question is to work out what number 'x' represents in order for this equation to be true. This simply means that we want to find the number that 'x' equals, so we ...

We have:
√5(√8 + √18)
Now, multiply out the brackets (multiply everything inside the brackets by √5). This gives us
√40 + √90
We now need to simplify the SURDs. We know that we want th...

Pythagoras theorem which applies to right angled triangles is summarised by the following formula: c²= a² + b² where 'c' is the hypotenuse of the triangle, whilst 'a' and...

It's a probability equation. The probability of getting an orange sweet the first time is 6/n. The probability of getting an orange sweet the second time is 5/n-1Times those together to get the probabilit...

First notice x is currently written as a power of 2 and 3x + 1 is written as a power of e, so we are going to need to use some sort of log to start getting x on its own. You can take a clue from the quest...