When doing planned comparisons, . Group of answer choices there is no correction for the inflated Type I error probability tobt is reduced to correct for the inflated Type I error probability a different number of df are used which corrects for the inflated Type I error probability a different sampling distribution is used to correct for the inflated Type I error probability

Given: lines a and b are parallel and line c is a transversal. prove: 2 is supplementary to 8 what is the missing reason in the proof? statement reason 1. a || b, is a transv 1. given 2. ∠6 ≅ ∠2 2. ? 3. m∠6 = m∠2 3. def. of congruent 4. ∠6 is supp. to ∠8 4. def. of linear pair 5. ∠2 is supp. to ∠8 5. congruent supplements theorem corresponding angles theorem alternate interior angles theorem vertical angles theorem alternate exterior angles theorem

Find the volume of the solid obtained by rotating the region enclosed by the curves y=1x and y=7^-x about the x-axis. (use symbolic notation and fractions where needed.) volume =

Ithink i know it but i want to be sure so can you me out ?