Find the least common denominator for the following rational expressions (r – 1)(r – 4)(r – 5)

(r – 1)(r + 4)(r – 5)

(r – 1)(r + 1)(r – 4)(r – 5)

(r – 1)(r + 1)(r + 4)(r – 5)

Can someone me with #s 8, 9, and 11. with just one of the three also works. prove using only trig identities.

The sum of the first eight terms of an arithmetic progression is 9m + 14. the fifth term of the06 progression is 2m - 6, where m is a constant. given that the first term of the progression is 26,find the value of the common difference, d and thevalue of m.

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