Its D
Its the only one that makes since
Answer:
i's 20 because it seems that it is the most successful
Now, if the
regular polygon has 100 sides, and the perimeter is 100 units, that simply means that each side is 1 unit, foot, meter, else.
so, we know each side is 1 unit long, and we know there are 100 sides,
Answer:
The maximum height of soccer ball is 12.25 ft.
Step-by-step explanation:
It is given that Tiffany kicks a soccer ball off the ground and in the air, with an initial velocity of 28 feet per second. It means v = 28 ft.
Given formula is

The initial height of ball is 0.


The height of ball defined by the function


It is a downward parabola and the vertex of a downward parabola is the point of maxima.
The vertex of a parabola
is



Therefore the maximum height of soccer ball is 12.25 ft.
Answer:
x = - 3, y = - 1
Step-by-step explanation:
y = 7x + 20 -----> equation 1
4x - y = - 11
4x - ( 7x + 20 ) = - 11
4x - 7x - 20 = - 11
- 3x = - 11 + 20
- 3x = 9
x = 9 / - 3
x = - 3
Substitute x = - 3 in equation 1,
y = 7 ( - 3 ) + 20
= - 21 + 20
y = - 1
Hence,
x = - 3
y = - 1