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Find the equation of the tangent for x = 2cos (2y +pi)

So this initially looks like a tricky question- especially the way it is written in the form of x as a function of y, ( x(y) ), rather than what we normally see y as a function of x, ( y(x) ).The first thing...
TM
Answered by Tonia M. • Maths tutor
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What does ADH do in the Kidney?

ADH or Anti Diuretic Hormone is a hormone that regulates the amount of water absorbed in the kidney. It acts on the collecting duct of the kidney, which is the last part of the nephron (a single functional u...
JH
Answered by Julia H. • Biology tutor
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Solve the simultaneous equations 3x + y = –4 and 3x – 4y = 6

Label first equation as equation 1 and the second as equation 22) Make y the subject of the equation from equation (1); hence: eq 1 : y = -4 -3x3) Substitute the new equation into equation (2) : 3x- 4(-4-3x)...
MI
Answered by Munachi I. • Maths tutor
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‘Theatre of the present is not as exciting as theatre of the past’ (30 Marks)

Title of the Play: The BacchaePlaywright: EuripidesDate Seen: 31 st July 2016Venue of the Production: Osterley Park I would argue that theatre of the present is more exciting than theatre of the past. Throug...
JS
Answered by Joseph S. • Drama tutor
2770 Views

How does freeze-thaw weathering occur?

Freeze-thaw weather occurs when water enters a small crack in a rock, which often happens during rainfall, then when temperatures fall to below 0 degrees celsius this water freezes and expands. This widens t...
EG
Answered by Emily G. • Geography tutor
5233 Views