2x+y-z=7
x-2y+2z=-9
3x-y+z=5

Identify this conic section. x2 - y2 = 16 o line circle ellipse parabola hyperbola

What 8/12+8/11 in another way than and improper fraction

Match the following reasons with the statements given to create the proof. 1. do = ob, ao = oc sas 2. doc = aob given 3. triangle cod congruent to triangle aob vertical angles are equal. 4. 1 = 2, ab = dc if two sides = and ||, then a parallelogram. 5. ab||dc if alternate interior angles =, then lines parallel. 6. abcd is a parallelogram cpcte