What is the area of this polygon 15m 10m 8m 9m

Consider the proof. given: segment ab is parallel to line de. prove: what is the missing statement in step 5?

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

Witch represents the inverse of the function f(x)=1/4x-12