Answer:
26
Step-by-step explanation:
=15(2) - 2(2)
=30 - 4
=26
Answer:
from the working in the photo
Answer: 
Step-by-step explanation:
Given
Vertex of the parabola 
Focus of the parabola 
As the x coordinate of vertex and focus is same and focus lie below the vertex, therefore the parabola is the type of

distance between Vertex and focus is 1 unit

Parabola becomes

Answer:
the answer should be 3.914 or 4
Step-by-step explanation:
hope it helps!
I am guessing that Part A: 3.914
and Part B: 4