Top answers

All subjects
A Level

How is DNA replicated, and why is this method of replication important?

DNA is replicated in a semi-conservative manner, which means that both 'parental strands' are used as templates. This ensures that genetic information is passed onto offspring without any changes
(di...

SB
Answered by Salima B. Biology tutor
2893 Views

How do I integrate by substitution?

Let's take for example the integral 5x2(x3-4)4dx. This is very difficult and not at all nice to expand in terms of x, so we can effectively "create" a new variab...

EC
Answered by Edward C. Maths tutor
3560 Views

Is AB perpendicular to BC where A =(2,0,-1), B=(4,3,-6) and C = (9,3,-4)

AB = B - A = (4,3,-6)- (2,0,-1) = (2 , 3 , -5)BC = C - B = (9,3,-4) - (4,3,-6) = (5, 0 , 2)
If perpendicular "AB dot BC" should equal zeroAB dot BC = (2,3,-5) dot (5,0,2) = (2x5) + (3x0) + ...

SU
Answered by Syed Usman B. Maths tutor
3776 Views

Demonstrate how the subjunctive can be used in French?

The Subjunctive in French is often described as a mood rather than a tense. There are many situations in which the subjunctive would be used in French where we would not consider it to be the correct way ...

TD
1620 Views

Explain how petrol and diesel cars may be a source of market failure?

As with many questions in economics A-level, I would start my answer with a paragraph explaining how under certain assumptions, an efficient allocation of resources can be achieved through the market mech...

DO
Answered by Daniel O. Economics tutor
2664 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