Top answers

All subjects
All levels

Where does the geometric series formula come from?

Rearranging the terms of the series into the usual "descending order" for polynomials, we get a series expansion of:  

axn-1 +........ax + a

A basic pro...

NA
Answered by Naheem A. Maths tutor
4880 Views

What are the differences between DNA and RNA?

There are three main differences between DNA and RNA: 

1. RNA has the base uracil instead of the base thymine. These bases are ve...

CC
Answered by Charlotte C. Biology tutor
4410 Views

What is the marketing mix?

The marketing mix, commonly associated with the 4Ps, describes the various factors that firms consider when marketing a product. These marketing mix is based upon the firm’s knowledge of its customers ...

RP
4116 Views

What is nuclear fusion?

When two atomic nuclei are heated to a very high temperature and high pressure, for example inside a star, their nuclei can join to make a larger nucleus. Energy is released when this fusion takes plac...

KR
Answered by Katherine R. Physics tutor
4321 Views

How do I work out the efficiency of a process from a Sankey diagram?

The formula for efficiency is:

efficiency = (useful energy / total energy)

Therefore, first we must find the total energy which is the sum of all of the branches of the Sank...

KR
Answered by Katherine R. Physics tutor
25527 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:

© 2026 by IXL Learning