Find the discriminant then state the number of rational, irrational, or imaginary solutions: 11. 9n^2 -3n+2=0
12. y^2 +6y+4=0
13. 9m^2 +6m+1=0
14. -2a^2 -2a+1=0
15. -9b^2 +8b=8
16. -x^2 -9=6x
17. 4r^2 +6=-4r
18. -3b^2 -8b=-1

Given the graph below state whether or not the relation is a function, and give the domain and range.

Select the correct answer from each drop-down menu. the table shows the annual sales revenue for different types of automobiles from three automobile manufacturers. sales revenue (millions of dollars) suv sedan truck marginal total b & b motors 22 15 9 46 pluto cars 25 27 10 62 panther motors 26 34 12 72 marginal total 73 76 31 180 the company with the highest percentage of sales revenue from sedans is . of the annual sales revenue from suvs, the relative frequency of pluto cars is .

Xy x xy if a and b are positive integers such that a*b=9 and b*a=72 what is the value of a/b