How do you write a system of equations as a matrix equation?

Check all that apply. f is a function. f is a one-to-one function. c is a function. c is a one-to-one function.

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

Afair die is cast four times. calculate the probability of obtaining exactly two 6's round to the nearest tenth of a percent