The first one on the picture
Answer:
28.26
Step-by-step explanation:
A = pi radius squared
A = 3.14 x 9
A= 28.26
So you want to plug in the height for h and solve for t
36 = -16t^2+14t+36
So you get 14/16 which simplifies to
7/8 seconds
Hope this helped!
17 1/2 i hope this helps!
Answer:
If I remember correctly, right angles are 90 degree angles. So the answers would be A. B. and C.
Step-by-step explanation:
If you see the little box on the angle, that means it's a 90 degree (right) angle.
