2+1=3
15/3=5
split the 3 5's in ratio 2:1 and you get 10:5
Square Perimetre = Side x 4
So a length of a square ground is 160/4 = 40 (m)
Answer:
The answer is B.
Step-by-step explanation:
Answer:
True!!
Step-by-step explanation:
The description expresses three points which can be used for a standard form equation. The vertex is stated to be (0,0) and is a maximum; two other points are (-21,-74) and (21,-74)
The equation for vertex form of a parabola:
y=a(x-h)^2+k
vertex (h,k)
thus our equation will be:
y=a(x-0)^2+0
thus
y=ax^2
using one of the points, the value of a will be:
-74=a(21)^2
a=-74/441
thus the equation will be:
y=-74/441x²