Classify the limaçon represented by the equation r=9-cosø

What is not true about kl and mn? what is mn? (show )

After t seconds, a ball tossed in the air from the ground level reaches a height of h feet given by the equation h = 144t-16t^2. after how many seconds will the ball hit the ground before rebounding?

Cody was 165cm tall on the first day of school this year, which was 10% taller than he was on the first day of school last year.