# User Rod

 Member for: 2 years (since Sep 19, 2014) Type: Administrator Extra privileges: Recategorizing any question Editing any question Editing any answer Editing any comment Editing posts silently Selecting answer for any question Viewing IPs of anonymous posts Viewing who voted or flagged posts Approving or rejecting posts Hiding or showing any post Deleting hidden posts Full name: Rodney A Jones Location: Wirral, Merseyside, UK About: Retired from work with local authority in IT. Interested in mathematics, general science, music. Enjoy solving math problems, Sudoku and similar puzzles, and helping others to solve them. Studied and graduated in maths and physics at Liverpool University in the 1960s. My philosophy for answering questions in Math Homework Answers: read questions carefully; answer clearly and make sure each question has been answered as far as possible; tackle some difficult questions, and answer easier ones to make up for time and effort spent on the trickier ones!

## Activity by Rod

 Score: 429,200 points (ranked #1) Title: Top Rated User Questions: 32 (7 with best answer chosen) Answers: 7,633 (411 chosen as best) Comments: 333

## Wall for Rod

I haven't been so well for the past few days but I think I'm getting over it a bit now.
Jan 12 by Rod
Phew, i thought you were hurt or something! Sheesh! MAN! OMG! TY! YOUR OK!
Jan 12 by Mathical
Comms were down for a while and it took me some time to get them back. I couldn't even communicate with my router. Anyway, eventually I got them back, just now and e-mails started to come through.
Jan 12 by Rod
Rod, I hope your alright because I been calling you and you haven't showed up.
Jan 12 by Mathical
Classify the following differential equations as whether
A. Ordinary or partial
B. Linear or non linear
C. Unknown function
D. Independent  variables
E. Order
F. Degree.
1.s"-4s'+5s'=cosx-4sinx
2.[1+d^2y/dx^2]^3/4 =p(dy/dx) ^2
3.x^2(d^y/dx^3)^4+log(1+x) (d^2y/dx2)^5=x^7
4.xd^2v/dx^2+(dv/dx) ^1/3=e^x
Oct 30, 2016 by CRISTDOM
Please can you help me to solve this, ( 2'-3) this the point
Jul 23, 2016
The function f(x)=x^3-x^2-x-11/4 is graphed in the x-y plane above. If k is a constant such that the equation f(x)=k has three real solutions, which of the following could be the value of k?
Jul 23, 2016