Top answers

All subjects
All levels

Find the value of x in (4^5⋅x+32^2)⋅2^5=2^16⋅x

Find the value of x in (45x+322)⋅25=216x

First we transform everything into powers of 2 as all the numbers involved in...

LC
Answered by Luis C. Maths tutor
7166 Views

Find the inverse of a 3x3 matrix

There are 4 key steps to this question.

(i) calculate the matrix of minors: you want to find the determinant of each entry and this forms a new matrix. 

(ii) convert this into a matrix of co...

JR
6684 Views

A ladder 5m long is leaning up against a wall. The foot of the ladder is 3m from the wall. How high up the wall does the ladder reach?

Think about which mathematical theorem you might want to use for this question (Pythagoras: a+ b2 = c)

Draw a diagram of the situation described, and write down...

JR
Answered by Josie R. Maths tutor
14145 Views

How might you use sound waves to smash a glass? What are other examples of resonance in everyday life?

The natural frequency of a glass can be found by tapping it or making it 'sing' (running a wet finger around the top of the glass till it sings a note. If you emit sound waves at this frequency in the dir...

JR
Answered by Josie R. Physics tutor
2200 Views

Why is the sky blue?

Light from the sun is white. As it passes through the Earth's atmosphere, the different wavelengths of white light (i.e. the visible spectrum of colours) are scattered by gas and dust particles. Colours w...

JR
Answered by Josie R. Physics tutor
5012 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