1 year ago

HELP I WILL GIVE OUT BRAINLETS I didnt spell it right uwu

Mathematics

1 answer:

bekas [8.4K]1 year ago

8 0

4:5 I think I’m not sure

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What is the focus of the parabola? <img src="https://tex.z-dn.net/?f=y%3D%20%5Cfrac%7B1%7D%7B4%7D%20x%5E%7B2%7D%20-x%2B3" id="Te

OlgaM077 [116]

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)

3 0

2 years ago

Read 2 more answers

HELP! WILL MARK BRAINLIEST IF CORRECT!

mariarad [96]

I think it’s 25???? i tried haha

8 0

2 years ago

Anser it and i'll give brainly, if you write anything and leave am gonna report you

aliina [53]

Answer:

5x2−9x=7 (Option B)

Step-by-step explanation:

this is correct 100%

4 0

3 years ago

Can somebody help me on this it is circumference and area of circles it shows everything in the photo whoever figures all of it

egoroff_w [7]

Refer to the attached image

7 0

2 years ago

Solve x2 − 10x = −13.

aev [14]

Answer:

Step-by-step explanation:

First, let's rearrange the given equation into something more recognizable. If we add 13 to both sides, we now have the polynomial $x^{2}-10x+13$ . We can now use the quadratic formula to solve.