He proposed the theory of the structure of atoms
(1)The nucleus at the centre of the atom has the positive charge.Most of the mass of the atom is concentrated in the nucleus.
(2)The negatively charged electrons revolve around the nucleus in specific orbits
(3)In comparison with the size of the atom , the nucleus is very very small.
Answer: Economic Surplus : $12
Explanation: Economic surplus is the difference between benefit and cost.
In this case, since he is working as a math tutor, he will get $45, there is no other cost. But if he goes for a movie, he will have to spend $12 on movie, which is the cost he needs to bear. The economic surplus is $12 which is not spent on the movie and worked as a math tutor.
Answer: option D is correct
Explanation:
This is the biologically productive land that can sustain the individuals activities. It takes into account resources needed to produce goods and clean up it's waste.
Answer:
The correct answer is True.
Explanation:
Whenever a conflict arises within the classification of projects between the expected monetary value and the standard deviation, the coefficient of variation is used to try to solve the problem. For this reason, it is concluded that the coefficient of variation is a standardized measure of risk.