Question 8 of 10 This circle is centered at the origin, and the length of its radius is 3. What is the circle's equation?​

What is the missing step in this proof ?

Iwill give ! if m∠a=59 and m∠3=81°, what is m∠b? m∠b= _[blank]_°

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?