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Solve the simultaneous equations: y = x + 6, x^2 + 2y = 9

y = x + 3x 2 + 2y = 9We want to make the squared equation have either only x's or only y's, so we substitute y = x + 3 into the equation:x 2 + 2(x + 3) = 9We need to take out the brackets, and simplify this ...
HH
Answered by Hayley H. • Maths tutor
3952 Views

State three ways in which a yeast cell differs from plant cells.

Yeast cells contain stored glycogen, whereas plant cells contain stored starch. Plant cells reproduce through mitosis whereas yeast cells reproduce through binary fission Plant cells contain chloroplasts, ye...
CB
Answered by Coralie B. • Biology tutor
10513 Views

Please conjugate the verbs faire and aller into the passé composé

The passé composé can be translated with the present perfect or the simple past in English. We use it to indicate that an action in the past has been completed. We use this form in particular to emphasise th...
LK
Answered by Lucie K. • French tutor
3341 Views

Solve 3x - 5 < 16

When solving inequalities, you should treat them like solving any regular equation that you are used to (ie. whatever operation you perform on the left hand side, you must perform on the right hand side also...
MR
Answered by Mylan R. • Maths tutor
5280 Views

Factorise a^2 + a - 30

This is a quadratic equation in the form ax 2 +bx+c. As the three terms don't have a common factor we cannot factorise this into one bracket, instead we will factorise it into two. In order to do this we mus...
IG
Answered by Isabella G. • Maths tutor
5706 Views