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Kitty [74]
2 years ago
6

Which is the equation of a hyperbola with directrices at y = ±2 and foci at (0, 4) and (0, −4)?

Mathematics
1 answer:
laila [671]2 years ago
3 0

Answer:

1

Step-by-step explanation:

x2/8 - y2/8 = 1

Thank me later :>

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What equation do you get when you solve z-m=z+bx for x
Sonbull [250]
Z-m=z+bx

z-m-z=z+bx-z

-m=bx

bx=-m

bx/b=-m/b; b=0

x=-m/b; b=0
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Can you guys help me on question 8 and 9 :)
Reika [66]

Answer:

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8 0
2 years ago
there 240 students in the middle school band. The band director is dividing the students into groups of 10. Into how many groups
defon

Answer:

Step-by-step explanation:

1 group = 10 students

x group = 240 students.

1/x = 10/240              Cross multiply

10x = 240                  Divide by 10

10x/10=240/10          Do the division

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8 0
3 years ago
Bruce evaluates the expression on a math quiz, 8.8 ÷ 2.7 and gets an answer of 4.14.
ella [17]
The correct answer is choice d.....
4 0
3 years ago
Read 2 more answers
Plot and connect the points A (2, -2), B (-4, -4), C (-4, -1), D (-2, 3), E (1, 3), F (2, 5), and find the length of BC.
Paul [167]

Answer:

BC = 3 units

Step-by-step explanation:

Given points:

  • A = (2, -2)
  • B = (-4, -4)
  • C = (-4, -1)
  • D = (-2, 3)
  • E = (1, 3)
  • F = (2, 5)

<u>Plot the points</u> on the coordinate plane (x, y) and connect them in alphabetical order with straight lines (see attached).

From visual inspection of the <u>drawn polygon</u>, we can see that the length of BC is 3 units.

It is fairly simple to calculate the length of BC without plotting the points.

As points B and C have the same x-value, this means that the distance between them is simply the difference between their y-values.

⇒ distance = |-4 - (-1)| = |-3| = 3 units

6 0
2 years ago
Read 2 more answers
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