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Acabas de pasar las vacaciones en una ciudad Española. Escríbele una carta a tu amiga describiéndole tus experiencias.

¡Hola Fernando! ¿Cómo estás? No te he escrito en tanto tiempo - ¡perdóname! Tengo tantas novedades para contarte. Durante el verano fui a España durante 3 meses para mejorar mi español en una escuela de idio...
SL
Answered by Susannah L. • Spanish tutor
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https://revisionmaths.com/sites/mathsrevision.net/files/imce/1MA0_1F_que_20160526.pdf Question 5

So what I would do first, would be to write the probability of chosing each counter out of the bag. For example red is 3/6 => 1/2, green is 2/6 => 1/3, and blue is 1/6. Then 5a => 1/6 is worse than ...
LB
Answered by Leon B. • Maths tutor
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What is meant by organic growth of a business?

Organic growth is when a business is using its profits to expand naturally, without needing to turn to external forms of investment such as a bank loan.
MB
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25 cm^3 of a solution of known 0.2M HCl is neutralised by titration by 21.5cm^3 of NaOH solution. Calculate then concentration of the NaOH solution to 3dp.

Recall n = c *(v/1000) if the volume is in Cm 3 . Now, n(HCl)= 0.2 x (25.0/1000) n(HCl) = 5x10 -3 Since the relationship stoichiometrically is 1:1 (H + : OH - ), we can infer that n(NaOH) = 5x10 -3 and by re...
WF
Answered by Will F. • Chemistry tutor
3853 Views

Factorise 7x^2+4x-3

look for common factors but there are not any in this case, it is a quadratic with 3 terms therefore it can be factorised into 2 brackets. First we look at the first term, since 7 is a prime number you can o...
RP
Answered by Reena P. • Maths tutor
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