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)
We should figure out the absolute value of -5.13. Absolute value is just the distance from 0, so the distance is 5.13.
-3.64×5.13-1.53
Multiplication is first.
-3.64×5.3=-19.292
-19.292-1.53=-20.822
-20.822 is the answer.
Tell me if this helps!!!
Answer:
x = 30
Step-by-step explanation:
The figure will be a parallelogram when adjacent angles are supplementary:
(3x)° + (x+60)° = 180°
4x +60 = 180
4x = 120
x = 30
The value x = 30 makes the figure a parallelogram.
_____
It also makes the figure a rectangle.
Answer:
its b i took the test
Step-by-step explanation:
