Top answers

All subjects
GCSE

Solve the following simultaneous equations. x^2 + 2y = 9, y = x + 3

x^2 + 2y = 9y = x + 3
x^2 + 2y = 9x^2 + 2(x+3) = 9x^2 + 2x + 6 = 9x^2 + 2x - 3 = 0(x + 3)(x - 1) = 0x= -3, x = 1
when x = -3y = x + 3y = (-3) + 3y = 0
when x = 1y = x + 3y = (1) + 3y = 4

JF
Answered by John F. Maths tutor
2821 Views

Describe the process of gene transcription?

Transcription is the process in which a gene's DNA sequence is copied to form a messenger RNA molecule. The DNA molecule unwinds due to the action of DNA helicase. RNA nucleotides complementary base pair ...

JF
Answered by John F. Biology tutor
2316 Views

Prove that the square of an odd number is always one more than a multiple of 4

If we say n is any number, then we know 2n represents an even number - any number multiplied by 2 is always even. 2n+1 represents an odd...

RR
Answered by Rebecca R. Maths tutor
3345 Views

Comment est-que je peux parler dans une manière plus sophistiquée?

En utilisant des phrases idiomatiques on peut améliorer son niveau de la langue parce qu'elles sont plus complexes étant donné qu'elles ne traduisent pas littéralement. Donc, telles expressions démontrent...

EB
Answered by ella b. French tutor
2392 Views

What are the main characteristics of a country in stage 1 of the DTM?

The demographic transition model is a representation of how a country's population changes over time with development. Stage 1 represents populations at the beginning of this model. It is characterised by...

EL
Answered by Emily L. Geography tutor
9553 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:

© 2026 by IXL Learning