A
Given a quadratic in standard form : y = ax² + bx + c ( a ≠ 0 ), then
The x-coordinate of the vertex is
= - 
y = - 3x² + 2x - 7 is in standard form
with a = - 3, b = 2 and c = - 7, hence
= -
= 
Substitute this value into the equation for y-coordinate
y = - 3 (
)² + 2 (
) - 7
= -
+
-
= - 
vertex = (
, -
) → A
The answer to your question is 706,000.
Answer:
Daniella: 0.2
Dwayne: 0.25
Angel: 0.2
Daniella and Angel have the same amount of scores. And Dwayne score is not. Dwayne has a higher score than Daniella and Angel.
Hope this helps
-Amelia