Yes it would calculate the changes in consumer surplus Than Guyen! :)
Answer:
The weekly revenue is maximum at x=1.67.
Explanation:
The given function is
.... (1)
where, f(x) is the total revenue at price x.
We need to find the price x at which the weekly revenue is maximum.
The leading coefficient of the given function is -300, which is a negative number. So, it is a downward parabola and vertex of a downward parabola is the the point of maxima.
If a parabola is defined as
... (2)
then the vertex of the function is
From (1) and (2) it is clear that
The given function is maximum at
Therefore the weekly revenue is maximum at x=1.67.
Answer:
D. usually produces an inefficiently small level of output.
Explanation:
A perfect competition is characterised by many buyers and sellers of homogenous goods and services. Market prices is usually set by market forces. There is no need for advertising because all firms produce homogenous products. There is little or no need for government regulation because goods and services are efficiently distributed.
A monopoly is characterised by one firm in the industry. The firm sets the market price. The government regulates the activities of the activities of a monopoly to reduce inefficiency that usually occur. Either quantity produced or price are usually regulated by the government to reduce inefficiency and ensure fair distribution of goods and services.
Monopoly firms usually advertise and undertake more research activities when compared to a pure competition.
I hope my answer helps you
Answer:
C. 2.45
Explanation:
Pv of cash flow
1000x9%/(1+0.12)
= 90/1.12
= 80.36
Weight = 1
Weighted pv of cash flow = 80.36
Pv of cash flow
= 1000x9%/(1+0.12)²
= 90/1.2544
= 71.75
Weight = 2
Weighted pv of cash flow = 71.75x2
= 143.5
Pv of cash flow
= (1000+1000*9%)/(1+0.12)³
= 1090/1.404928
= 775.84
Weight = 3
Weighted pv of cash flow
= 775.84x3
= 2327.52
Total pv of cash flow = 80.36+71.75+775.84
= 927.95
Total weight of cash flow pv =
80.36+143.5+2327.52
= 2551.38
Duration = weighted pv/pv
= 2551.38/927.95
= 2.75
Modified duration =
Duration/1+0.12
= 2.75/1.12
= 2.45
