A student is trying to solve the system of two equations given below: equation P: y + z = 6
equation Q: 5y + 9z = 1

Which of the following is a possible step used in eliminating the y-term?

A: (y + z = 6) × 9
B: (y + z = 6) × -5
C: (5y + 9z = 1) × 9
D: (5y + 9z = 1) × 5

Complete the equation of the line through (−10,3) and (−8,−8). use exact numbers.

How are sas and sss used to show that two triangles are congruent?

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