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There are 11 pens in a box, 8 are black, 3 are red. Two pens are taken out at random without replacement. What is the probability the pens are the same colour?

For the pens to be the same colour either two black pens need to be selected OR two red pens. So start with the probability of two black pens BB: On the first selection the probability of taking a black pen ...
GI
Answered by Georgia I. • Maths tutor
6694 Views

Translate into Russian : If I had studied more I would have passed my exams. Be sure to study hard or else you will fail like me

Если бы я учился больше, я бы сдал экзамены. Учись горячо, иначе провалишь зкзамены, как я!
EW
Answered by Esmee W. • Russian tutor
1523 Views

b)You are given g(x) = ax + b; You are also given that g(0) = 4 and g(1) = - 6; Find the value of a and the value of b

(Question on topic of algebra taken from June 2016 OCR Past Paper)b) This question may look different to the previous one but it's still only algebra, so it;s pretty much the same. Don't let the unknows scar...
SR
Answered by Stefania R. • Maths tutor
4529 Views

a)Rearrange the folowing to make m the subject; 4(m-2) = t(5m+3)

(Question on topic of algebra taken from June 2016 OCR Past Paper)a) This question LOOKS like algerba and IS 100% algebra. We have 2 unknows that we treat just like we treat any number and we have to make m ...
SR
Answered by Stefania R. • Maths tutor
4436 Views

How can you tell the gender of a noun in German?

The quick answer is learn the gender with the noun. There are no real hard and fast rules to know the gender of a noun in German. The best method is to learn the genders as you go. If you are making lists of...
AC
Answered by Andrew C. • German tutor
3600 Views