The ones digit of a two digit number is one less than the tens digit. one-half of the sum of the ones digit and double the tens digit is 13. find the number and show work

If x = 12 and y = 3, what is the value of x - y 2? 81 6 3 18

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

Solve the triangle. a = 21°, c = 105°, c = 5