Diana raises a 1000N piano a distance of 5.00m using a set of pulleys. What is the work output

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

Savannah is painting a striped background for a mural on a wall that is 1515 yards long. she wants a total of 9696 stripes that are all the same width. which calculation should savannah use to decide how wide to make each stripe?

What are the solutions of the system? solve by graphing. y = -x^2 - 3x + 2 y = -2x + 2