Melody

\(-5-2\sqrt2\)    is an irrational number and is already in its most simple form

Since you found out that the word you wanted to use was not allowed why didn't you just use a different, more appropriate one.

Certain words offend some people and that is why they are censored out.

The approx value is   -7.82 as iiavx has already told you.

No

I mean with GeoGebra

Of course,

How can anyone answer a question if you only include half the question?

This whole question has been a total waste of everyone's time. Including yours.

I cannot access the file.

Is there more to this question?

The pic comes AFTER part b  So what are the instructions for part a and part b.

Nowhere does it say that you can only have 3 objects on a card.  Maybe you can have 20 objects or 50 etc

So could you determine the number of possible combinations?

Guest made assumptions when answering, and maybe those assumptions were as intended but mathematics should be precise and this question is pitiful.

Are you happy with guest's answers?   (Perhaps you have a final answer sheet)

If you are then at least express some gratitude.

If not, then say so,  people are happy to interact with question askers that are genuinely trying to learn.

What is the sum of all values of y for which the expression (y + 6)/(y^2 - 3y - 2) is undefined?

The denominator cannot be 0

\(y^2-3y-2 \ne 0\\ y\ne\frac{3\pm\sqrt{9+8}}{2}\\ \)

So as JP said, the sum of these is 3

Hint:

The angle at the centre of a circle will be twice the angle at the circumference if both are standing on the same arc.

The arc both these angles is on is LM 

Choose a p?  What is a p? What are you talking about? 

I suppose p stands for pick and it is the number you have chosen.

ok

The easiest way is to make q the subject of that equation. 

Then substitute in each value of p. one at a time then count how many work.  

Put the number that work over 10 and you will have your answer.