A company models its net income, in thousands of dollars, with the function f(x)=9x2−54x−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?

Me solve this problem, and someone clearly explain to me how to solve it.1.) use the value of the discriminant to determine if the given trinomials has 2 real solutions, 1 real solution, or no real solutions. a.  x2  − 4x  − 7 = 0b. 4r2  + 11r  − 3 = 0c. 3m2  + 7 = 0d.  t2  + 2t  + 1 = 0

Which number line represents the solution set for the inequality - x 24?

In priyas math class there are 10 boys and 15 girls. what is the ratio of boys to girls in priyas math class? express your answer as a decimal