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Solve x^2-x-12=0

x² - x - 12 = 0Factorise to get (x-4)(x+3)=0This gives (x-4)=0 or (x+3)=0So x=4 or x=-3

Answered by Hursh Singh A. • Maths tutor

2376 Views

Find the values of x such that: (log3(81)+log2(32))/(log2(x)) = log2(x) (5 marks)

log₃(81) = 4 , log₂(32) = 59/log₂(x) = log₂(x)9 = (log₂(x))²3 = log₂(x) , -3 = log₂(x)x = 8 , x = 1/81 mark per line...

Answered by Iver E. • Maths tutor

4231 Views

We are given a right angled triangle with one side of unknown length. The shortest side is 3cm long, and the longest side is 5cm long. Calculate the remaining side.

This is a classic question testing your understanding of Pythagoras' Theorem. This is an equation which shows us the relationship between the 3 sides of a right angled triangle : a² + b²

Answered by Sean M. • Maths tutor

2948 Views

Using newtons laws explain how a falling object can reach terminal velocity (6)

So we need to break this down into two parts, what are Newtons laws and what is terminal velocity? In this case we will only need the first two of Newtons laws. Number one " An object will remain at ...

Answered by Robert S. • Physics tutor

2615 Views

Discuss 'deviation from social norms' as a definition of abnormality

Deviation from social norms refers to deviation from unstated rules about how one ought to behave: anything that violates these rules must then be consider abnormal. In society there are standards of acce...

Answered by • Psychology tutor

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