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Solve the inequality 2(2x − 4) > 28

2(2x-4)>28In this question we want the get the x on it's own so we need to remove everything beside it.So we multiply out the brackets 2(2x-4) = 4x-8So then we have 4x-8>28.Then we move the 8 to the...

RS
Answered by Rebecca S. Maths tutor
4896 Views

Find ∫((x^2−2)(x^2+2)/x^2) dx, x≠0

Before we start any integration steps it would be wise to try and simplify the fraction that we have been given. We want to get rid of that denominator so we will start by expanding out the numerator. Thi...

AS
Answered by Anthony S. Maths tutor
2151 Views

If you are given the function f(x) = 10-3x and g(x) = (x-3)/2 , find the value of the composite function gf(4) ?

The composite function can be thought of as if the function f(x) is the variable for the function g(x) instead of x. So first you find the value of the function f(4),f(4) = 10 - (3x4) = 10 - 12 ...

HL
Answered by Hajerah L. Maths tutor
3307 Views

How many (1/6)'s are there in 4 & 1/2?

  1. The first step is to work out how many (1/6) there are in one whole. 6 x (1/6) = 1.
    2)The next step uses partitioning. Split the 4 & (1/2) into a separate (4) and then (1/2)
    3) Wo...
RM
Answered by Rimah M. Maths tutor
9612 Views

How do you differentiate y=ln(x)

I would use the fact that ln is the inverse function of the exponential function e^x to re-write the equation as x=e^y. This can be directly seen by just putting e^y=e^(lnx). Since the definition of a ln(...

MG
Answered by Milo G. Maths tutor
8351 Views

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