Top answers

All subjects
All levels

What is the inverse of a function and how do you find it?

  • A function, f(x), is something that takes various input values of x, and for each one, generates an output value, e.g. if f(x) = x2 then when x=3, f(x) = f(3) = (3)2 = 9, which...
JM
Answered by Jack M. Maths tutor
3352 Views

How do I form the present subjunctive?

For regular verbs, the present subjunctive is formed differently depending on whether the verb ends with -ar or -er/ir. For -ar verbs , take the first person singular of the present tense of the verb, rem...

IW
Answered by Isabel W. Spanish tutor
1863 Views

The perimeter of a right-angled triangle is 72 cm. The lengths of its sides are in the ratio 3 : 4 : 5 Work out the area of the triangle.

Work out the lengths of each side; do so by adding the ratio components together (3+4+5).The components add to 12; we can now find the value of a single unit of the ratio, by dividing 72 by 12.72/12 is 6;...

LF
Answered by Lorissa F. Maths tutor
3360 Views

Why can extreme pH or temperature cause enzymes to denature?

Enzymes are proteins; as such they have a primary, secondary and tertiary structure. Each type of structure helps to hold the enzyme together so that it's substrate - the molecule it specifically binds to...

LF
Answered by Lorissa F. Biology tutor
60649 Views

What is the all-or-nothing principle?

The all- or-nothing-law is related to neurons and is the idea that a neuron can only have a full response (fire an action potential) or no response to a stimulus due to its threshold.Once the resting pote...

Answered by Biology tutor
12526 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