A company models its net income, in thousands of dollars, with the function f(x) = 9x ^ 2 - 54x - 144 , where x is the number of units of its product sold. How many units of its product does the company need to sell in order for the net income to equal $0?

1. which of the following algebraic equations is equivalent to ? x^n = a a^n = x a^x = n x^a = n 2. 16^1/4= 1/2 2 4 3. (-36)^1/2= -6 1/6 no real number 4. 8^2/3= 4 8 16√2 )^5/2= 7,776 1/7,776 no real number 6. m ^ the square root of a^2m simplified is: 7. the square root of 3^3 times the square root of 2 simplified and in radical form is:

Use the elimination method to solve the systems of equations.choose the correct ordered pair. 7x+4y=39

Find the magnitude, correct to two decimal places, made by each of the following with positive direction of the x axis a) y= x the answer is 45° but i don’t know how