Answer:
42.86% and 61.91%
Step-by-step explanation:
90/210=9/21=42.86%
130/210=13/21=61.91%
Answer:
-9x² + 5x + 11
Step-by-step explanation:
-5x² + (-4x²) + 5x + 2 + 9
-9x² + 5x + 11
Answer:

Step-by-step explanation:
The general vertex form of parabola is,

where,
(h, k) is the vertex of the parabola.
The given function is,








This is vertex form the given function.