Answer:
Recursive
a(1) = 9 ; a(n+1) = 3 * a(n)
Explicit
a(n) = 9 * 3^(n-1)
It is in the air 5.625 seconds.
Using the quadratic formula,

0 is when the ball is first launched, 5.625 is when it hits the ground again.
Answer:
Step-by-step explanation:
Answer:
1.one solution
2.no solution
3.ifinitly many
Step-by-step explanation:
A conservative vector field

has curl

. In this case,

so the vector field is not conservative.