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Solve the simultaneous equations: (1) x^2 + y^2=41 and (2) y=2x-3

First we substitute one x or y into the other equation. The easiest one to put in in this case would be the y in equation (2). So putting the y into (1) you get x^2 + (2x-3)^2=41. Then we expand out the b...

Answered by Olivia A. • Maths tutor

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Compare anaerobic respiration in a yeast cell with aerobic respiration in a muscle cell (3 marks)

yeast cells produce ethanol whereas muscle cells produce lactic acid as a by-product yeast cells produce CO2, muscle cells do not they both produce small amounts of energy

Answered by Cat F. • Biology tutor

3998 Views

How does the hormone ADH help the kidneys regulate the water content of blood?

ADH is produced by the pituitary gland located in the brain. When the water content of blood is low, more ADH is released from the pituitary gland into the blood. When it reaches the kidneys, it causes th...

Answered by Gabriella Z. • Biology tutor

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Using a production you have seen in the last 12 months, describe and explain the lighting of the production, and how this reflected, if at all, any of the themes of the production itself.

The production I went to see was 'Heathers: The Musical' at the Haymarket Theatre on October 15th 2018. The production follows our lead, Veronica Sawyer, starting out at a new school in America a...

Answered by LOUIS S. • Drama tutor

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Outline the main reasons why the Kerensky government fell in 1917 in Russia

It is clear that the fall of the Kerensky government was multi-faceted, with many factors causing destabalisation of the provisional government. However, the most substantial reason for the fall of the go...

Answered by Laith A. • History tutor

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