Two circles of radius 8 are tangent to the graph of
y2 = 4x
at the point
(1, 2).
find equations of these two circles.

Match each graph with the correct equation from the equation bank. not all equations will be usef

At the newest animated movie, for every 9 children, there are 4 adults. there are a total of 39 children and adults at the movie.

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?