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Find the value of x in the equation 3x + 5 = 11

x is a positive number - the question for us is what the value of x is. To find this, we will have to rearrange the equation given. There are multiple ways of doing this. Firstly, we can make the equation si...
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Answered by Rory C. • Maths tutor
15364 Views

What harmonic, melodic and rhythmic elements are common in 20th Century Music?

The harmonic elements that are common in 20th century music are the regular use of dissonance, and a lack of classical chord progressions. This dissonance is also unlikely to be prepared as seen with music o...
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Answered by Seb M. • Music tutor
6021 Views

If the probability of picking a red ball out of bag A is 2/5 and the probability of picking a red ball out of bag B is 3/7, what is the chance that you will pick exactly 2 red balls if you pick 2 balls from A and 1 ball from B? The balls are not replaced.

Draw a tree diagram. Recognise that the second ball selected from bag A is dependent on the outcome of the first ball. The outcome of the ball selected from B is independent. There are 3 orders that 2 red ba...
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Answered by Nicky M. • Maths tutor
4912 Views

How do you factorise x^2 - 4?

x^2 - 4 consider that in any quadratic the two numbers which end up in the brackets at the end must add up to the middle term in x. they must also multiply to make the number at the end of the quadratic term...
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Answered by Zachary M. • Maths tutor
10406 Views

What is the best way to prepare for my exam?

I find the best way to prepare for either your GCSE or A level exam is to firstly solidify your knowledge on aspects you may be tested on, such as topic knowledge and grammar, and then to practice applying t...
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Answered by Logan C. • Spanish tutor
2479 Views