Answer:
The ball throw into the air with an initial velocity of 22 meters per second is 27.4 meters above the ground after 3 seconds.
Step-by-step explanation:
The quadratic function
represents the height of the ball above the ground, h(t), in meters, with respect to time, t, in seconds.
To find h(3), substitute t = 3 into the function expression:

Meaning: the ball throw into the air with an initial velocity of 22 meters per second is 27.4 meters above the ground after 3 seconds.
The area of a circle is pi * radius^2, so it would be km^2 pi.
πkm²
4x+17 is the answer I think
Answer:
9.5 +7.4+13.2+3.2=33.3
Step-by-step explanation: