Geometry the length of a rectangle is twice the width. find the width if the perimeter is 60 centimeters. define a variable, write an equation, and solve the problem.

#12 find the value of x. #13 find the value of the variable.

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

See attachment below and find the equivalent of tan(∠qsr)