The distance of one light-year is approximately 9,500,000,000,000 kilometers. What is this distance in scientific notation?

Ling listed all of the factors of a mystery number: 1,2,4,8,16,32 what is the mystery number?

What is the simplified form of (3.25x10^3)(7.8x10^6) written in scientific notation?

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