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How to use 'ser' and 'estar'

Both ser and estar translate in English as 'to be'. Ser and estar, however, are very different in both meaning and usage. First of all it is important to note that both ser and estar are irregular verbs. For...
CS
Answered by Callum S. • Spanish tutor
5507 Views

Factorise and solve: x^2 - 8x = -15

Step 1 : The first step is to rewrite the equation in the form a x 2 + b x + c = 0. So in this case, we achieve this by adding 15 to both sides: x 2 - 8x + 15 = -15 + 15 x 2 - 8x + 15 = 0 Step 2: Now we need...
MJ
Answered by Maisie J. • Maths tutor
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What are the products of the reaction between an acid and a base?

A salt and water (H 2 O). H + from the acid and OH - from the base combine to make water. The salt formed depends on the acid and base counterions, and is usually dissolved in water.
GH
Answered by George H. • Chemistry tutor
7780 Views

How do I structure an essay properly?

It's actually really easy to do your essay structuring right. I always followed this formula and still do! I use PEE. This is simply Point, Evidence, Example. So, if the question is, 'how did Hitler gain pow...
AT
Answered by Annabelle T. • History tutor
2446 Views

Write tan(3x) in terms of tan(x). Hence show that the roots of t^3 - 3t^2 - 3t + 1 = 0 are tan(pi/12), tan(5pi/12) and tan(3pi/4)

The first part is relatively simple. If we write tan(3x) as tan(2x+x) we can use addition formulae to give: tan(2x+x)= (tan(2x)+tan(x))/(1-tan(2x)tan(x)) tan(2x) = 2tan(x)/(1-tan^2(x)) Substituing this in an...
DG
Answered by Daniel G. • Maths tutor
53847 Views