Answer:
It takes her 25.2 mintes
Step-by-step explanation:
You can just multiply 21 by 1.2 because that's how long she takes per lap and you can get 25.2
Answer:
0.694444444
Step-by-step explanation:
just divide the top from the bottom-
Answer:
1: (3 ,- 4)
2:up (a > o)
3: -4
4: 2 units to the right
5: 4 units down
6: y = (x-2)^2-4
7:
8:
9: (5,9)
10: x=5
11: (4,7) and (6,7)
12:
Step-by-step explanation:
I'm not sure if you wanted it explained or answered , so i just answered most of them. Sorry if you wanted it explained.
Answer:
The endpoints of the latus rectum are 
and 
.
Step-by-step explanation:
A parabola with vertex at point 
and whose axis of symmetry is parallel to the y-axis is defined by the following formula:
(1)
Where:
- Independent variable.
- Dependent variable.
- Distance from vertex to the focus.
, 
- Coordinates of the vertex.
The coordinates of the focus are represented by:
(2)
The <em>latus rectum</em> is a line segment parallel to the x-axis which contains the focus. If we know that 
, 
and 
, then the latus rectum is between the following endpoints:
By (2):
By (1):
There are two solutions:
Hence, the endpoints of the latus rectum are and .
