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AlladinOne [14]
2 years ago
10

Write the equation of a parabola with a vertex at (0,0) and directrix at (0,4)

Mathematics
1 answer:
Vaselesa [24]2 years ago
7 0
Decrcefegrgr fecdrfvrvdvdvdc hdgdhddvvedgdgrgdvdvdvdvv
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solmaris [256]
It is y=5 and x=10 !!!!!
3 0
3 years ago
What is the equation of a circle with center of (4,2) passing through the point (7,2)
attashe74 [19]

Answer:

(x-4)^2 + (y-2)^2 = 3^2

or

(x-4)^2 + (y-2)^2 = 9 (simplified if needed)

Step-by-step explanation:

-Equation of a circle is:

(x-h)^2+(y-k)^2=r^2 where the center is (h, k) and the radius is r^2.

-Place the center and the point onto that equation:

(7-4)^2+(2-2)^2=r^2

-Then, you solve:

(7-4)^2+(2-2)^2=r^2

(3)^2+(0)^2=r^2

9 +0=r^2

9=r^2

\sqrt{9} =\sqrt{r^2}

3=r

-So, the result is:

(x-4)^2+(y-2)^2=3^2

or

(x-4)^2+(y-2)^2=9 (simplified if needed)

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3 years ago
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bonufazy [111]

Answer:

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Step-by-step explanation:

8 0
2 years ago
You buy a pair of shoes for $40, at check out you are also charged 8% sales tax. What is the total cost of your shoes
satela [25.4K]

Answer:

43.20

Step-by-step explanation:

I hope this is right !

4 0
2 years ago
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Find 4,5,6 Answer the rest for a thank you, and a brainliest.
zmey [24]
Area of circle=\pi  r^{2}

Q4. Area of circle=\pi *12^{2}
                            =3.14*12^{2}
                            =452.16in^{2}   

Q5. Area of circle=\pi * ( \frac{6}{2} )^{2}
                            =3.14*3^{2}
                            =28.26in^{2}

Q6. Area of circle=\pi * (3 \frac{1}{2} )^{2}
                            =\frac{22}{7} * ( \frac{7}{2} )^{2}
                            =38.5in^{2}
4 0
3 years ago
Read 2 more answers
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