Top answers

All subjects
A Level

Why is it that the sum of all natural numbers up to n is 1/2(n)(n+1)?

First let's consider the case of even numbers. Suppose n is even, then it must be double some other number, so we have:
n = 2k
Where k is another natural number. We want to find out what:
1...

IM
Answered by Ibrahim M. Maths tutor
3950 Views

what factors determine enzyme activity?

several factors play a role in the rate of an enzyme catalysed reaction. substrate concentration: The amount of substrate in the solution. The higher the concentration of substrate the mo...

JL
Answered by Jack L. Biology tutor
3396 Views

Find dy/dx in terms of t for the curve defined by the parametric equations: x = (t-1)^3, y = 3t - 8/t^2, where t≠0

The first step is to recognise that, by the chain rule, dy/dx = dy/dt * dt/dx.
dy/dt and dt/dx can both be found by differentiating the functions given in the question, to give dy/dt and dx/dt. dt/d...

AC
Answered by Alex C. Maths tutor
21169 Views

integrate the following: 2x^4 - 4/sqrt(x) +3 with respect to x

The 3 terms of this equation can be integrated separately. The general integration of xn is (xn+1)/n+1 where n is a real number not equal to -1. This can be applied to the terms 2x

AF
Answered by Adrien F. Maths tutor
3701 Views

Después de haber estudiado la obra 'La Casa de Bernarda Alba', ¿sientes alegría y optimismo o tienes otros sentimientos?

EXAMPLE ANSWER: ‘La Casa de Bernarda Alba’ trata de una época muy estricta y religiosa en España (1936), justo antes del inicio de la Guerra Civil. Presenta un gran número de temas e ideas, y de...

VB
Answered by Vanessa B. Spanish tutor
5342 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