If x^2 + 2= 3^2/3+3^-2/3 then prove that 3x^2+ 9x - 8 = 0.

School has 204 sixth grade students. if the sixth grade is 30% of the total school, how many students are in the middle school?

1. writing an equation for an exponential function by 2. a piece of paper that is 0.6 millimeter thick is folded. write an equation for the thickness t of the paper in millimeters as a function of the number n of folds. the equation is t(n)= 3. enter an equation for the function that includes the points. (-2, 2/5) and (-1,2)

Is triangle jkl congruent to triangle rst? if so, what is the scale factor?