Answer:
Cant see.
Step-by-step explanation:
We know that
the equation of the parabola is of the form
y=ax²+bx+c
in this problem
y=1/4x²−x+3
where
a=1/4
b=-1
c=3
the coordinates of the focus are
(-b/2a,(1-D)/4a)
where D is the discriminant b²-4ac
D=(-1)²-4*(1/4)*3-----> D=1-3---> D=-2
therefore
x coordinate of the focus
-b/2a----> 1/[2*(-1/4)]----> 2
y coordinate of the focus
(1-D)/4a------> (1+2)/(4/4)---> 3
the coordinates of the focus are (2,3)
Answer:
What are the relative frequencies, to the nearest hundredth, of the rows of the two-way table?
A B
Group 1 15 45
Group 2 20 25
Drag and drop the values into the boxes to show the relative frequencies.
A B
Group 1
Group 2
Step-by-step explanation:
Answer:
The coordinates of point M' are 
.
Step-by-step explanation:
According to the statement, we have the following translation rule:
(1)
Where:
- Original point.
- Translated point.
- Translation vector.
If we know that 
, then the coordinates of the point M' are:
The coordinates of point M' are .
Try 1(18) / 2
Just multiply 1 by 18 and divide 18 by 2.
Then we have 9!
