Find the diameter of a circle with a circumference of 65.97 meters.​

In the past, professional baseball was played at the astrodome in houston, texas. the astrodome has a maximum height of 63.4 m. the height of a baseball t seconds after it is hit straight up in the air with a velocity of 45 ft/s is given by h = -9.8t2 + 45t + 1. will a baseball hit straight up with this velocity hit the roof of the astrodome? use the discriminant to explain your answer.

2x + 1 < 5 solve the following inequality. then place the correct number in the box provided.

Write numerical coefficient of y² in the expression 2x² - 15xy – 7y²