At what points will al be producing the most equal amounts of sandwiches and salads? at what point will al not be using his resources efficiently? what point is not possible for production at this time? ?

Given that ot =5, xt=12, and ox= 13 is xy tangent to circle o at t? explain.

Kayla wants to find the width, ab, of a river. she walks along the edge of the river 65 ft and marks point c. then she walks 25 ft further and marks point d. she turns 90° and walks until her location, point a, and point c are collinear. she marks point e at this location, as shown. (a) can kayla conclude that δ and δ are similar? why or why not? (b) suppose de = 15 ft. what can kayla conclude about the width of the river?

Prove that 16^4-2^13-4^5 is divisible by 11.