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Gala2k [10]
3 years ago
10

Find the value of x x=?

Mathematics
1 answer:
jok3333 [9.3K]3 years ago
7 0

Answer:

e. dmkdjdjdjdisiwuwuwuw

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1.Write the equation for an ellipse with vertices (–4, 2), (2, 2), (–1, –2) and (–1, 6).
Nimfa-mama [501]
The general equation of <span>an ellipse:
\frac{(x-h)^2}{a^2} + \frac{(y-k)^2}{b^2} =1&#10;

we have </span><span>vertices (–4, 2), (2, 2), (–1, –2) and (–1, 6).⇒⇒⇒ red points
by graphing the points ⇒⇒⇒ attached figure 1
the majority axis is the line connecting </span><span>(–1, –2) and (–1, 6) and has a distance = 8
the minority axis is the line connecting </span><span><span>(–4, 2), and (2, 2)</span> and has a distance = 6
(h,k) represents the center of ellipse which is the intersection between axes
∴(h,k) = (-1,2)
and a = 3 , b = 4
∴ the equation of the ellipse is
</span>
\frac{(x+1)^2}{9} + \frac{(y-2)^2}{16} =1&#10;
=========================================================

<span>A hyperbola with vertices (9, 3) and (5, 3) ⇒⇒⇒⇒ blue points
and with foci (11, 3) and (3, 3). ⇒⇒⇒⇒ red points
</span><span>by graphing the points ⇒⇒⇒ attached figure 2
</span>so, the hyperbole axis is horizontal
<span>(h,k) represents the center of hyperbola = (7,3) ⇒⇒⇒ green point
a = distance between center and any of vertices = 7 - 5 = 2
c = </span><span>distance between center and any of foci = 7 - 3 = 4
∵ c² = a² + b²
∴ b² = c² - a² = 16 - 4 = 12
the general equation of the hyperbole :
</span><span>\frac{(x-h)^2}{a^2} - \frac{(y-k)^2}{b^2} =1&#10;
the equation of the </span>hyperbole will be
<span>\frac{(x-7)^2}{4} - \frac{(y-3)^2}{12} =1&#10;</span>

8 0
3 years ago
During a thunderstorm​ yesterday, 600 millimeters of rain fell in 30 minutes. What is the unit rate for millimeters per​ minute?
eimsori [14]

Answer:

.33

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
Can someone help me with this quickly pleaseee
Sati [7]

Answer:

≈ 52m^2

Step-by-step explanation:

1)the face of a semicircle: (\pi*r^2)/2

2)the face of a rectangle: 6*5

3)the face of a triangle: (3*5)/2

1)  d=6m r=3m  (3.14*3^2)/2=28.26/2=14.13

2)  6*5=30

3)  (3*5)/2=15/2=7,5

Full surface:  14.13+30+7.5=51.63

answer:  51.63m^2 ≈ 52m^2

7 0
2 years ago
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A gallon of gas cost $2.16. Rob buys 13.5 gallons of gas. How much did he pay?
pashok25 [27]

Answer:

$29.16

Step-by-step explanation:

Each gallon of gas is $2.16.

13.5 gallons of gas is 2.16 (13.5) = $29.16.

4 0
3 years ago
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Which of the following representations are functions?
Hitman42 [59]
The answer to this question is a and c only
7 0
3 years ago
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