Top answers

P + p=

2p
TS
Answered by Tom S. • Maths tutor
3571 Views

Draw a diagram that represents the electronic arrangement of a fluorine atom.

Electrons are arranged in different shells (sometimes described as an energy levels) around the nucleus with the innermost shell being filled first and then working outwards. The first shell can hold a maxim...
IA
15914 Views

Explain and evaluate the influence of Testosterone on aggression

Testosterone is suggested to be a strong influencer of aggression in males. This is a male sex hormone that is produced within the leydig cells of the testes and the adrenal cortex located within the brain. ...
MR
Answered by Martin R. • Psychology tutor
7955 Views

A car costs £5,899.99, not including VAT. If the VAT rate is 20% how much does the car cost in total?

100% = £5,899.99 10% = £590.00 £590.00 x 2 = £1,180.00 £5,899.99 + £1,180.00 = £7,079.99
HT
Answered by Helen T. • Maths tutor
3706 Views

I did a question the other day which expected me to know what cos(30) is without a calculator. How do I work it out?

There are certain angles that you can use shapes and trigonometry to work out what their cosine, sine and tangent angles are. These angles are 30, 45 and 60 degrees and there are 2 very simple but important ...
PH
Answered by Philip H. • Maths tutor
13205 Views