Which side lengths represent the sides of a right triangle? A)
1, 1, 2
B)
2,3,5
C)
5, 12, 13
D)
7,23,25

What values of x satisfy the inequality x^2-9x< 0? how is your answer shown on the graph?

Awater holding tank measures 105 m long, 50 m wide, and 8 m deep. traces of mercury have been found in the tank, with a concen- tration of 60 mg/l. what is the total mass of mercury in the tank? answer in units of kg.

Given the diagram below, michael writes, "segment ac is congruent to segment ac." which of the following reasons allow him to write this statement?