Answer: Second option is not true for a firm in perfect competition.
Step-by-step explanation:
We know that
In perfect competition, number of buyers and sellers are in large number, free entry and exit of firms, it sells homogenous products and can't earn abnormal profit.
In this competition, "Firm is the price taker, industry is the price maker".
and AR = MR as there is constant price fixed by the industry.
Hence, Second option is not true for a firm in perfect competition.
Answer:
The operation that reverses the effect of another operation. Example: Addition and subtraction are inverse operations. Start with 7, then add 3 we get 10, now subtract 3 and we get back to 7.
Step-by-step explanation:
Answer:
f(2) = -5
Step-by-step explanation:
f(2) means that x = 2.
We are trying to find the y-value when x = 2.
When x = 2, we see from the graph that our y-values is equal to -5.
Therefore, f(2) = -5
The discriminant of a quadratic equation is useful in determining the nature of its roots. Further, it can be solved by the equation,
D = b² - 4ac
From the given equation, b = 3, a = 2, and c = -5. Substituting the given to the equation,
D = 3² - (4)(2)(-5) = 49
Thus, the answer is the fourth choice, 49.
Solution:
we have been asked to find the solution of the equation
It can be solved using factoring as below:
![x^6 + 6x^3 + 5 = 0\\\\substitute, x^3=y\\\\y^2+6y+5=0\\\\y^2+5y+y+5=0\\\\y(y+5)+1(y+5)=0\\\\(y+5)(y+1)=0\\\\y=-1,-5\\\\\text{substitute back }y=x^3\\\\x^3=-1,-5\\\\x=-1,\sqrt[3]{-5} \\\\\text{These are the only real solutions}\\](https://tex.z-dn.net/?f=x%5E6%20%2B%206x%5E3%20%2B%205%20%3D%200%5C%5C%5C%5Csubstitute%2C%20x%5E3%3Dy%5C%5C%5C%5Cy%5E2%2B6y%2B5%3D0%5C%5C%5C%5Cy%5E2%2B5y%2By%2B5%3D0%5C%5C%5C%5Cy%28y%2B5%29%2B1%28y%2B5%29%3D0%5C%5C%5C%5C%28y%2B5%29%28y%2B1%29%3D0%5C%5C%5C%5Cy%3D-1%2C-5%5C%5C%5C%5C%5Ctext%7Bsubstitute%20back%20%7Dy%3Dx%5E3%5C%5C%5C%5Cx%5E3%3D-1%2C-5%5C%5C%5C%5Cx%3D-1%2C%5Csqrt%5B3%5D%7B-5%7D%20%5C%5C%5C%5C%5Ctext%7BThese%20are%20the%20only%20real%20solutions%7D%5C%5C)
