Show that f(x) = 2x + 3 and g(x) = (x - 3)/2 are inverse functions. (Show all steps)

What is the average rate of change for this function for the interval from x=2 to x=4 ?

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

What are the solutions of the equation x4 + 6x2 + 5 = 0? use u substitution to solve.