It is in form (x,y) (ususally)
7.5 and 12
there is something called a coordinate system where a line called the y axis runs vertically for infinity and a line perpendicular to it, crosses it. the other line is called the x axis which also extends for infinity
the point where they cross is point (0,0) or the origin
basically the numbers tell you how far you are from the axises
on the y axis, + numbers are up and - numbers are down
on the x axis, + numbers are to the right and - numbers are to the left
7.5=x and 12=y
+7.5 is positive
7.5 means that the point is 7.5 units to the right of the origin in relation to the x axis
12 is positive
12 means that the point is 12 units up from the origin in relation to the y axis
hope this helped. feel free to ask if its too confusing
K= change in y/ change in x
K= (30-18)/(5-3)
K=12/2
K=6
Answer:
C. 120°
Step-by-step explanation:
length of arc = 4π cm
r = 6 cm
central angle = s/r
=> central angle = 4π/6
=> central angle = 2π/3 radians
In degrees,
central angle = (2π/3)(180/π) = 120°
hope this helps and is right. p.s i really need brainliest :)
Answer:
The possible coordinates of point A are
and
, respectively.
Step-by-step explanation:
From Analytical Geometry, we have the Equation of the Distance of a Line Segment between two points:
(1)
Where:
- Length of the line segment AB.
- x-coordinates of points A and B.
- y-coordinates of points A and B.
If we know that
,
,
and
, then the possible coordinates of point A is:
![\sqrt{(1+8)^{2}+(2-y_{A})^{2}} = 15](https://tex.z-dn.net/?f=%5Csqrt%7B%281%2B8%29%5E%7B2%7D%2B%282-y_%7BA%7D%29%5E%7B2%7D%7D%20%3D%2015)
![81 + (2-y_{A})^{2} = 225](https://tex.z-dn.net/?f=81%20%2B%20%282-y_%7BA%7D%29%5E%7B2%7D%20%3D%20225)
![(2-y_{A})^{2} = 144](https://tex.z-dn.net/?f=%282-y_%7BA%7D%29%5E%7B2%7D%20%3D%20144)
![2-y_{A} = \pm 12](https://tex.z-dn.net/?f=2-y_%7BA%7D%20%3D%20%5Cpm%2012)
There are two possible solutions:
1) ![2-y_{A} = -12](https://tex.z-dn.net/?f=2-y_%7BA%7D%20%3D%20-12)
![y_{A} = 14](https://tex.z-dn.net/?f=y_%7BA%7D%20%3D%2014)
2) ![2 - y_{A} = 12](https://tex.z-dn.net/?f=2%20-%20y_%7BA%7D%20%3D%2012)
![y_{A} = -10](https://tex.z-dn.net/?f=y_%7BA%7D%20%3D%20-10)
The possible coordinates of point A are
and
, respectively.
The slope of the ramp would be 5/9