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GCSE

i) Make y the subject of the expression x = ((a-y)/b))^1/2 ii) Simplify fully (2x^2 − 8)/(4x^2 − 8x)

i) Square both sides of the expression to make x^2=(a-y)/b 

Multiply by b to remove the fraction from the equation and then rearrange to make y the subject.

bx^2=a-y --> y=a-bx^2

i...

OS
Answered by Oscar S. Maths tutor
4701 Views

A semicircle has a diameter of 8cm, what it the area?

Area of a circle = pi × r2

Area of semi-circle = 1/2(Area of circle) 

= 1/2(pi × r2)

Diameter = 2r 

r = 8÷2 = 4

Area of semi-circle = 1/2(pi × 4

AP
Answered by Annabelle P. Maths tutor
9365 Views

How will I remember all the quotes I need for the exam from each book or play?

First of all, you need to remember that no one can memorise a whole book, and you are certainly not expected to. 

What you need to do is be tactical about what you learn. What I mean by this is tha...

LG
3962 Views

Why is age classification important for films and television programmes?

Age classification is an important part of film distribution. Without knowing the age rating for a film, a potentially underage audience member could watch harmful content. However ratings are predominate...

JG
12020 Views

Does the structure of a poem (or the way it appears on the page) link to its overall meaning?

The structure of a poem is important to understanding its content! This changes from poem to poem but when analysing a piece, you should think about the number of stanzas included, the length of the stanz...

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4684 Views

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