Neutrons= Atomic Mass Number- Atomic Mass Number
So 85-25= 60
Answer:
150
Step-by-step explanation:
-(-4)^2 + 7(-2)^4 - 2(-3)^3
-16 + 112 - 2(-27)
; -16 + 112 + 54
;150
Your doing great, I’m pretty sure that’s the correct answer
Answer: The jet's speed from A to B would be 5.5 km/hr.
Step-by-step explanation:
Since we have given that
Distance = 2500 meter
Outbound speed be x
Average speed be
Time = 9 hours 10 minutes =
According to question, it becomes,
Hence, the jet's speed from A to B would be 5.5 km/hr.
The first three can be selected in 9c3 ways which equals 84.
The second three can be selected in 6c3 ways which equals 20.
Then the third set of three can be selected in 3c3 which equals 1 way.
Now we want three things to happen, so multiply 84 and 20 and you get 1680.
The order of this does not matter so divide 1680 by 3 and you have 280!!