Answer:
The value of a is 
The equation is 
Step-by-step explanation:
we know that
The function of a vertical parabola written in vertex form is equal to
where
(h,k) is the vertex of the parabola
in this problem we have
substitute in the equation
Find the value of the coefficient a
Substitute the value of x and y of the point 
in the equation
The equation is equal to
----> is a vertical parabola open downward
Answer:
b
Step-by-step explanation:
Answer:
Length and the width of the rectangle is 15.5 inches and 8.5 inches respectively.
Step-by-step explanation:
Given:
Length = 7 inches + Width
=> P = 48 inches
=> L = (7 + W) inches............. (1)
Perimeter 'P' is the sum of all sides of the rectangle 2 (L + W)
∴ 48 inches = 2 (L + W) .................(2)
Substitute for L in equation (2)
∴ 48 inches = 2 [(7 + W) + W]
48 = 2[7 + 2W]
48 = 14 +4W
48 - 14 = 4W
34 = 4W
W = 8.5 inches
Recall that: Length, L = (7 + W)
∴ L = (7 + 8.5)
L = 15.5 inches
The answer you're looking for is 40 tennis balls.
Hope this helped!
Answer:
11
Step-by-step explanation:
9+9+11+15 = 44
44/4 = 11!
