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Solve 2x+5=9

So, to solve this we want to isolate the x's on one side of the equation. We do this by subtracting 5 from both sides to give 2x=4. Then, we want to obtain a single x on one side of the equation. To do th...

MH
Answered by Mike H. Maths tutor
4866 Views

A curve C has the equation x^3 + 6xy + y^2 = 0. Find dy/dx in terms of x and y.

By differentiating with respect to x, 3x^2+6x(dy/dx)+6y+2y(dy/dx)=0 So, dy/dx(6x+2y)=-3x^2-6y so dy/dx = -(3x^2+6y)/(2(3x+y))

MH
Answered by Mike H. Maths tutor
4147 Views

Describe the mechanism for bromination across a double bond

This mechanism is an example of an electrophillic addition reaction.

Firstly consider the approach of a Br2, and how that bond will develop an induced dipole as a result of the high electron densit...

LO
Answered by Lewis O. Chemistry tutor
3394 Views

Define first past the post and List PR voting systems.

First Past the Post is a voting method in which voters are required to indicate on the ballot the candidate of their choice. The candidate who receives more votes than any other candidate wins in the area...

BT
Answered by Bruce T. Politics tutor
2291 Views

How do I close read a passage from a literary text?

Close readings are an essential part of the study of English Literature. They form the basis of a lot of essay writing, exams and coursework and become particularly important if you’re thinking of studyin...

CN
6822 Views

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