Describe the key features of the graph of the quadratic function f(x) = -5x 2 + 5. A. Does the parabola open up or down? B. Is the vertex a minimum or a maximum? C. Identify the axis of symmetry, vertex and the y-intercept of the parabola.

Solve - pv + 40 < 65 for v solve 7w - 3r = 15 for r

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

Find the arc length of the semicircle. 7the grade