What is an economic rent

An 'Economic rent' can be broadly defined as income derived from ownership or control over a limited asset or resource. Such income is attained without any expenditure or effort on behalf of the resource holder or in excess of their opportunity cost.

Step-by-step explanation:

1. Search up "Economic Rent" on your browser

Information found on:

https://www.ucl.ac.uk/bartlett/public-purpose/research/economic-rents#:~:text='Economic%20rent'%20can%20be%20broadly,excess%20of%20their%20opportunity%20cost.

Hope this helps!

the polynomial is a perfect square trinomial of the form a^2-2ab+b^2:

option a. true

step-by-step explanation:

9x^2-12x+4

comparing with the form a^2-2ab+b^2

1.) a^2=9x^2

solving for a: square root both sides of the equation:

sqrt(a^2)=sqrt(9x^2)

a=sqrt(9) sqrt(x^2)

a=3x

2.) b^2=4

solving for b: square root both sides of the equation:

sqrt(b^2)=sqrt(4)

b=2

to be a perfet square trinomial 2ab must be equal to 12x. let's check:

2ab = 2 (3x) (2)

2ab = 12x

correct

a reflection across the x axis and a 90 degree rotation left and right.