Top answers

Expand and simplify the following expression: x(5x – 2) – 3(x2 – 2x + 7)

5x2 – 2x – 3x2 + 6x – 21= 2x2 + 4x − 21
Answered by • Maths tutor
8897 Views

Explain how global patterns of migration are influenced by high concentrations of young workers and female migrants. (8)

NB: ALWAYS check the number of available marks - so this is a typical 8 mark question and therefore you should aim to write 4 A01 points and then develop them with the typical PEE structure, using case studi...
Answered by • Geography tutor
3005 Views

How does Virginia Woolf deplore canonic conventions in 'Mrs Dalloway' through the characters of Elizabeth and Clarissa Dalloway?

Top tip: for top marks EMBED quotations directly from the novel throughout your essay, + to make this process easier and approach revision quickly ensure you highlight and use sticky-notes when you first rea...
Answered by • English tutor
4161 Views

The longest side in a right-angled triangle is 12cm. One of the shorter sides is 4 cm. Calculate the perimeter of the triangle

12 2 = 4 2 + x 2 [This is pythagoras' theorem (a 2 = b 2 + c 2 ) ] 144 =16 + x 2 128 = x 2 11.31 = x Perimeter = 11.31 + 12 +4 = 27.31
RC
Answered by Rachel C. • Maths tutor
8187 Views

Which has a lower boiling point chlorine or bromine, and why?

Chlorine has a lower boiling point as it is smaller in size than bromine. Chlorine has fewer electrons than bromine and fewer electron shells so chlorine is smaller in atomic radius. Size affects the strengt...
GF
7308 Views