Search our library of homework questions

Top answers

All subjects

All levels

How would you solve the simultaneous equations 2x + y = 7 and 3x - y = 8

To solve a pair of simultaneous equations you need to find the values of x and y which are the same for both equations. To do this you should eliminate one of the unknowns - in this instance it can easily...

Answered by Kenna H. • Maths tutor

3822 Views

If an equation of a line is y=2x+4 and it crosses the x axis at point R, what is the value of x?

Since we know that the line crosses the x axis, we can assume that the value of Y at this point is 0. So we must substitute y = 0 into the equation y = 2x + 40 = 2x + 4we now have to isolate x on its own ...

Answered by Abigail C. • Maths tutor

3588 Views

Josie walks into her house from outside, as she enters a dark room, a spider falls in front of her face, describe the changes that occur in the eye to visualise a close up object in the dark.

This question aims to address the following learning objective:To be able to relate the structures of the eye to their functions. This includes: accommodation to focus on near or distant objects and adapt...

Answered by Michaela G. • Biology tutor

2729 Views

How can I improve my essay technique?

Arguably the most important aspect of a good psychology grade is strong technique in your essays, particularly your 16 markers. These 16 markers can prove more challenging due to the different parts that ...

Answered by Izzy W. • Psychology tutor

2265 Views

Quelle est la différence entre "ça" et "sa" et quand est-ce qu'on utilise l'un ou l'autre?

"Ça" est un pronom, utilisé quand on peut remplacer par "cela". Par exemple "Je vais corriger ça" = "Je vais corriger cela".L'équivalent anglais serait "it&quo...

Answered by Sophia M. • French tutor

7752 Views