81 because each person has 9 people to greet and there’s 9 people so 9x9=81
Answer:
sorry I didn't know next time I tell you ok
There are federal laws about the death penalty. states have their own individual laws, but there are federal laws such as not sentencing a mentally ill convict to the death penalty.
When a body is moving in circular path at a
distance r from its center its velocity at any
instant will be directed tangentially. This is
what we call tangential velocity. It is
calculated as follows:
Vt=r(w)
where w = 5 rev/s (2m rad / rev) = 31.42
rad/s
Vt = 0.24(31.42) = 7.5 m/s
The answer is D. A prediction uses known data and extrapolates a future data point.
