Top answers

What if I don't know where to start with an unseen?

Remember that you have time to contemplate the question, re and then re-read the extract and get over that initial panic. Breaking the question up and then trying to put it into your own words is a good way ...
CW
3733 Views

Find the equation of the line that passes through (2, 4) and (7, -11)

Step 1) Write out the general equation of a straight line: y = mx + c where m is the gradient and c is where the line intersects the y-axis. Step 2) Find the gradient: m = change in y / change in x, m = (-11...
RG
Answered by Romily G. • Maths tutor
4238 Views

Write 36 as a product of prime factors. Give your answer in index form.

First write down any two factors of 36 (numbers that multiply together to give 36). Let's use 2 x 18. We now need to break these numbers down into prime factors. 2 is already a prime number, so we only need ...
JA
Answered by Jennifer A. • Maths tutor
19127 Views

What does the hormone insulin do?

It is produced by the pancreas, it acts on cells in the liver to stimulate the uptake of glucose from the blood, and its conversion to glycogen.
SI
Answered by Sufyaan I. • Biology tutor
2824 Views

Show that ((sqrt(18)+sqrt(2))^2)/(sqrt(8)-2) can be written in the form a(b + 2) where a and b are integers.

First we expand the brackets on the numerator and collect the terms together. We need to get rid of the square root term on the denominator, and we do this by multiplying the numerator and denominator by sqr...
OA
Answered by Olivia A. • Maths tutor
19205 Views