PLEASE HELP!! Decrease the numbers by 2 1/2 and show your Calculations.

1/2, 1 1/3, 1/4, 1, 1/2, 1 1/2

If x=-3 is the only x-intercept of the graph of a quadratic equation, which statement best discribes the discriminant of the equation?

Given f(x)= 9x+1 and g(x)=x^3, choose the expression (f*g)(x)

which of the following sets of data would produce the largest value for an independent-measures t statistic? the two sample means are 10 and 20 with variances of 20 and 25 the two sample means are 10 and 20 with variances of 120 and 125 the two sample means are 10 and 12 with sample variances of 20 and 25 the two sample means are 10 and 12 with variances of 120 and 125