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Solve the simultaneous equation: 2x - 5y = 9 , x + 6y = -4

First multiply the second equation by 2, so it becomes 2x + 12y = -8. Then subtract the second equation from the first one which gives (2x - 2x) + (-5y - 12y) = (9 - -8), -17y = 17. Therefore y = -1. Plug th...
AC
Answered by Anagh C. • Maths tutor
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State 3 organelles found in a Eukaryotic cell and the functions of each organelle.

The organelles present in a Eukaryotic cell and there functions are the following: The Nucleus - the nucleus controls all the cells activities, it houses the DNA. Rough Endoplasmic Reticulum - The Rough Endo...
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Answered by Katrina B. • Biology tutor
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Is there a technique to writing good essays for Paper 2 and Paper 3?

Though everyone's writing is different, and many different kinds of essays can get a good mark, the mark scheme shows several things that make for a good essay, and that can easily be implemented. By followi...
OD
Answered by Olivia D. • History tutor
10430 Views

why are all atoms neutral?

All atoms are neutral because all atoms have the same number of protons as they have electrons. Atoms are made up of a nucleus and electrons that surround their nucleus in shells. The nucleus contains proton...
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Answered by Freya B. • Chemistry tutor
15866 Views

‘Thomas Hardy’s tone remains strongly melancholic.’ Discuss.

Hardy’s poetry can often be seen as melancholic. His use of imagery, such as in ‘Neutral Tones’, appeals to the passing of the seasons and a deadness in the landscape to evoke a sense of sadness and melancho...
AC
Answered by Ailin C. • English tutor
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