The mean of the distribution of the sampling mean is the same as the mean of the population, 18.6.
The factor of mn+5m-3n-15 is 6m-4n-15.
Step-by-step explanation:
1 cubic decimetre = 1000000 milimetres
Answer:
45 cubic units
Step-by-step explanation:
See attached.
Answer:
The force exerted by the weight lifter is 81.7 N.
Step-by-step explanation:
We can find the force exerted by the weight lifter using the definition of work:
(1)
Where:
F: is the force
d: is the displacement
We have W = 9.8 J of work and d = 0.12 m, so by solving equation (1) for F we have:

Therefore, the force exerted by the weight lifter is 81.7 N.
I hope it helps you!