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Solve 9x-4=7(x+2)

BIDMAS is used to determine the first step in solving this problem. The bracket on the right hand side is expanded first. 9x-4=7x+14. Now the x's and numbers must be moved to opposite sides of the equals sig...
JT
Answered by Jayani T. • Maths tutor
7227 Views

How do you form a Cartesian equation from two parametric equations?

If the two parametric equations have the form x = a t + b and y = c t + d then the first step is to rearrange one to make the parameter 't' the subject. We then substitute this equation for 't' into the othe...
AL
Answered by Alexander L. • Maths tutor
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The curve C has the equation (x^2)+4xy-8(y^2)+27=0. Find dy/dx in terms of x and y.

dy/dx= (x+2y)/(8y-2x)
EO
Answered by Emily O. • Maths tutor
4786 Views

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RA
Answered by Rosie A. • Maths tutor
3951 Views

Comparing Methane and Water's Properties

This question is quite chemical, and it's important to draw a diagram when answering it during the exam for both yourself and the marker to show a complete understanding of what is going on. Water is made of...
AS
Answered by Adedayo S. • Biology tutor
34495 Views