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How do you work out the nth term for a linear equation?

For a linear sequence use DNA! This is a formula that can be used to work out the nth term. It is officially written as Dn+alets take an example: 3, 7, 11, 15, 19, 23The "D" stands for the differen...
DM
Answered by Danica M. • Maths tutor
5759 Views

Dividing Fractions

Dividing fractions looks hard but is a lot easier than you think! Let's take two fractions: 1/4 and 3/8. If you are asked to divide 1/4 by 3/8 the easiest way to do this is to flip the 3/8 round to give 8/3....
AP
Answered by Amy P. • Maths tutor
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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 brac...
OA
Answered by Olivia A. • Maths tutor
5605 Views

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
CF
Answered by Cat F. • Biology tutor
4196 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 the k...
GZ
Answered by Gabriella Z. • Biology tutor
4362 Views