A cyclist bikes x distance at 10 miles per hour. and returns the same path at 8 miles an hour what is the average

If m 17 27 90 63 ** picture is attached

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?

Which of the following quartic functions has x = –1 and x = –2 as its only two real zeroes?