In triangle abc, an altitude is drawn from vertex c to the line containing ab. the length of this altitude is h and h=ab. which of the following is true? i. triangle abc could be a right triangle. ii. angle c cannot be a right angle. iii. angle c could be less than 45 degrees.

If the graphs of the linear equations in a system are parallel, what does that mean about the possible solution(s) of the system? a. there are infinitely many solutions. b. there is no solution. c. there is exactly one solution. d. the lines in a system cannot be parallel.

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?

Write the equation in logarithmic form 8^x=64