13. A study of 40 English composition professors showed that they spent, on average, 12.6 minutes correcting a student's term paper. a. Find the best point estimate of the mean.
b. Find the 90% confidence interval of the mean
time for all composition papers when
o= 2.5 minutes.
c. If a professor stated that he spent, on average,
30 minutes correcting a term paper, what would be
your reaction?

Ihave trouble finding the nth term of a linear sequence

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

If on=8x-8,lm=7x+4,nm=x-5,and ol=3y-6