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Aleksandr [31]
3 years ago
13

Also the last one is a N — Find the measure of each missing angle in each triangle

Mathematics
1 answer:
LenKa [72]3 years ago
7 0
X=212, y=88, n=50, L=212 hope this helps
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Which equation represents the equation of the parabola with focus (-3 3) and directrix y=7?
Artemon [7]

Answer:

The equation y=\frac{-x^2-6x+31}{8} represents the equation of the parabola with focus (-3, 3) and directrix y = 7.

Step-by-step explanation:

To find the equation of the parabola with focus (-3, 3) and directrix y = 7. We start by assuming a general point on the parabola (x, y).

Using the distance formula d = \sqrt {\left( {x_1 - x_2 } \right)^2 + \left( {y_1 - y_2 } \right)^2 }, we find that the distance between (x, y) is

\sqrt{(x+3)^2+(y-3)^2}

and the distance between (x, y) and the directrix y = 7 is

\sqrt{(y-7)^2}.

On the parabola, these distances are equal so, we solve for y:

\sqrt{(x+3)^2+(y-3)^2}=\sqrt{(y-7)^2}\\\\\left(\sqrt{\left(x+3\right)^2+\left(y-3\right)^2}\right)^2=\left(\sqrt{\left(y-7\right)^2}\right)^2\\\\x^2+6x+y^2+18-6y=\left(y-7\right)^2\\\\x^2+6x+y^2+18-6y=y^2-14y+49\\\\y=\frac{-x^2-6x+31}{8}

6 0
3 years ago
9 is 1/3% of what number?
Aleonysh [2.5K]
27 is the answer I believe
8 0
3 years ago
Please answer the following…
Ymorist [56]

Answer:

$75.22

$42

$5

Step-by-step explanation:

4 0
3 years ago
X<br> Combine like terms:<br> 10k - 2k + 7s2 - 32
Free_Kalibri [48]

Answer:

7s^{2} + 8k - 32

4 0
3 years ago
−6 = x/8+4<br> ILL GIVE BRAINLIEST❤️❤️
Lorico [155]

Answer:

2

Step-by-step explanation:

6x=4+8

6x=12x= 12/6

x=2

​

8 0
3 years ago
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