burnbird16 wrote:31. Write as a single equation in x and y: x = t + 1, y =
solve for and plug the expression for into
Helping students gain understanding and self-confidence in algebra.
burnbird16 wrote:34. Express x in terms of the other variables in this picture: http://www.flickr.com/photos/46210274@N07/4918073428/ (I drew it myself, I know it's kind of small, but it is a replica of the drawings in the packet)
Martingale wrote:Use the properties of similar triangles.
burnbird16 wrote:Okay, I've got another one from question 31. It's letter c, and as before, I'm supposed to write it as one equation, but this one involves sine and cosine:
I need some help here. What I did was:
t = arcsin x
y = cos (arcsin x)
But that can't be right, and if it is, I don't know how to complete it.