Answer:
Step-by-step explanation:
given n particles of masses m1, m2, .... mn located at points (x1, y1), ... (xn,yn) the coordinates of the center of mass are given by
So, using this formulas we get that
which corresponds to answer D
Answer:
The distance the marina can travel = = 48 miles
Step-by-step explanation:
The rate going out against the current is = u - v = 20
The rate going out with the current is = u + v = 30
Let the distance traveled by the motorboat =
Total time the boat can travel = 4 hours
⇒ Total time = ( Time taken by boat to go against the current ) + ( Time taken by boat to go with the current )
⇒ 4 =
⇒ 4 =
⇒ 4 =
⇒ = 48 miles
This is the distance the marina can travel.
There are 79,200 feet in 15 miles.
Answer:
kira put the points in the wrong places