Top answers

All subjects
All levels

Differentiate the equation y = (2x+5)^2 using the chain rule to determine the x coordinate of a stationary point on the curve.

Use the chain rule as this is a composite function. Let u=2x+5.So the original equation becomes y=(u)^2.Using the chain rule: dy/dx = dy/du * du/dxdy/du = 2udu/dx = 2So dy/dx= 4uSince u=2x+5, dy/dx = 4(2x...

DP
Answered by Daniel P. Maths tutor
5017 Views

How do you solve simultaneous equations?

There are two main methods:Substitution and elimination which can be demonstrated on the white board.

AC
Answered by Adham C. Maths tutor
2666 Views

Explain the main structures of a human cell.

A human cell is made up of:Cell Membrane: provides structure for the cell and controls what goes in and outCytoplasm: Jelly like liquid which contains the organellesNucleus: Contains DNAMitochondria: Make...

AC
Answered by Adham C. Biology tutor
2779 Views

Explain why the body tenses up in rigor mortis

This is because when an organism dies there is no source of ATP, without this source of ATP ant myosin heads attached to the actin binding site cannot detach therefore leaving the muscles in a contracted ...

Answered by Biology tutor
3530 Views

How does natural selection occur?

A population of organisms exists with a set range of alleles. In an organism, a random mutation can result in the formation of a new allele. Some mutated alleles can be beneficial to an organism, and incr...

TP
Answered by Thendrral P. Biology tutor
3841 Views

We're here to help

contact us iconContact ustelephone icon+44 (0) 203 773 6020
Facebook logoInstagram logoLinkedIn logo

MyTutor is part of the IXL family of brands:

© 2025 by IXL Learning