Melody

Yes, very nice happy :)

Well square units anyway - I didn't see any mention of feet. :)

x^2+2x+1=0 x=-1 ?

because

(-1)^2=1

2*-1=-2

and

1-2+1=0

All answers must be converted to imperial minums.  Seriously!

Can you work it out from the graph

Very impressive Chris :)

There is a toggle on the bottom of the web2 calc for this.

Translation means slide - so reflection or rotations are not correct

Verical means straight up or down (higher of lower)

-9 means lower by nine

I just entered this into the calc

mod(64^235,391)

$$\left({{\mathtt{64}}}^{{\mathtt{235}}}\right) {mod} \left({\mathtt{391}}\right) = {\mathtt{4}}$$

I don't know how to do this without the calc  

go to post a new question - where you just were

Look at info for new people.

That and other questions are answered there.