Aprofessor teaching a discrete math course gives a multiple-choice quiz that has ten questions, each with four possible responses: a, b, c, d. what is the minimum number of students that must be in the professor's class in order to guarantee that at least three answer sheets must be identical? (assume that no answers are left blank.)3

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

Consider that lines b and c are parallel. what is the value of x? what is the measure of the smaller angle?

Atransformation t : (x,y) (x-5,y +3) the image of a(2,-1) is