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factorise fully- 8y + 4y2

First of all you need to separate the two numbers you have 8Y and 4y2 then ask yourself what you can divide both these 2 numbers with? so 4 can be divided by 4 and 8 can be divided by 4. so we can divide bot...
LL
Answered by Logan L. • Maths tutor
8853 Views

What is the difference between an elastic good and an in-elastic good?

The demand for a good which is elastic will react significantly to a change in price of a good. So if I was selling mars bars in a shop ( and mars bars were an elastic good) if I increased the price of a mar...
LL
Answered by Logan L. • Economics tutor
5481 Views

What is an easy way to remember how sin(x) and cos(x) are differentiated and integrated?

If you imagine that sin(x), cos(x), -sin(x) and -cos(x) are on a wheel as shown below: sin(x) -cos(x) cos(x) -sin(x) then going clockwise around the wheel you have what each term differentiates to, so sin(x)...
HE
Answered by Hannah E. • Maths tutor
18635 Views

What is the difference between Ionic and Covalent bonding

Covalent bonds are formed when two atoms share one or more pairs of electrons. These atoms are non-metals, such as Carbon, Oxygen and Hydrogen. Ionic bonds are formed when an atom gives one or more electrons...
TN
Answered by Theo N. • Chemistry tutor
3633 Views

Essere o Avere? Which auxiliary verb must I use?

Ah! the famous auxiliary verbs. Here is a handy guide - You use "avere" with ACTIVE TRANSITIVE verbs. Here is an example Io HO mangiato - I have eaten. The verb "eaten" describes an actio...
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Answered by Giusy U. • Italian tutor
3626 Views