Find the partial derivatives of the following functions a) z = 8x^2 − 4xy + 5y^2
b) z = 5xe^y
c) z = 3xln(y)

The variable z is directly proportional to x, and inversely proportional to y. when x is 4 and y is 13, z has the value 1.2307692307692. what is the value of z when x= 9, and y= 20

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

Will give brainliest immeadeately true or false: the origin woud be included in the solution set for the inequality: y< 2x-5