Top answers

solve y=3x+4, x=y+1

Equation 1) y=3x+4Equation 2) y=x+1 Rearrange equation 2 into terms of x as this is the simplest: x= y-1 (We do this by subtracting 1 off of each side to get X by itself)Substitute new equation 2 into 1: y=3...
CS
Answered by Caitlin S. • Maths tutor
3481 Views

Explain through Darwin's Theory of evolution how species become better adapted to their environment.

Darwin's Theory suggests that all populations have variation between them, this variation is primarily caused by mutations in DNA. If an individual within a species gains a beneficial mutation it will be mor...
CS
Answered by Caitlin S. • Biology tutor
3312 Views

What is the difference between nature and nurture?

The nature vs nurture debate is about whether behaviour is caused by our genetics or whether all behaviour is learnt. Genetics refers to our DNA; what we are born with which is determined by our parents' DNA...
LP
Answered by Lisa P. • Psychology tutor
6963 Views

Factorise x 2 − x − 12

X 2 - X -12 look at what numbers will add together and make 12. (2x6) or (3x4)Then see what of these combinations, when added together, makes -1. you have to consider that one of these values will be negativ...
VV
Answered by Vicky V. • Maths tutor
4789 Views

How can you integrate the function (5x - 1)/(x^(3)-x)?

The first thing to do, is see if it can be simplified: 5x -1 can't, however x^(3) - x simplifies to x(x^2 - 1) and then to x(x-1)(x+1) by the difference of two squares. So now we have (5x - 1)/(x(x-1)(x+1)) ...
AW
Answered by Adam W. • Maths tutor
3557 Views