1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
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 :>

You might be interested in
Coefficient x^2 in the expansion of (2+x)^5
Monica [59]
Alright, expand the given equation:
(2+x) (2+x) (2+x) (2+x) (2+x)
Use FOIL method and distribution to solve
At the final answer, find the x^2 and the number that multiplies to it is the coefficient
I can't do the actually expansion for you, it would take a decently long time. You should be able to, its a good practice. Good luck!
7 0
3 years ago
It costs Doug $30 to set up a cupcake stand. He charges $2 for every cupcake he sells. If Doug makes $48 of profit in one day, h
Lunna [17]

Answer:

It is 39 cupcakes.

Since he charges $2 per cupcake (39), it is 78.

He makes profit so subtract 30 from 78 and you get $48.

6 0
3 years ago
HELPPPPPPPPPPPPPPPPPPPP
SVEN [57.7K]
If x + y = 6, then solve for y to get: y = 6 - x.

Now replace y with 6 - x in both equations.

(5x)/3 + 6 - x = c

2(6 - x) = c - 4x

The upper equation is solved for c.
Now we solve the lower equation for c.

c = 2(6 - x) + 4x

c = 12 - 2x + 4x

c = 2x + 12

Since we have two equations solved for c, we substitute to get

(5x)/3 + 6 - x = 2x + 12

This is an equation in only x, so we can solve for x.

(5x)/3 - 3x = 6

5x - 9x = 18

-4x = 18

x = -9/2

Now we solve for y.

x + y = 6

-9/2 + y = 6

y = 9/2 + 12/2

y = 21/2

Now we solve for c.

c = (5x)/3 + y

c = (5 * (-9/2))/3 + 21/2

c = -45/6 + 21/2

c = -15/2 + 21/2

c = 6/2

c = 3

Answer: c = 3
7 0
3 years ago
What is the common ratio for this geometric sequence 3,12,48,192,... A 16 B. 3 C. 4 D. 9
hram777 [196]

Answer:

4

Step-by-step explanation:

The common ratio is  found by taking the second term and dividing by the first term

12/3 = 4

We can check by taking the third term and dividing by the second

48/12 = 4

The common ratio is 4

3 0
3 years ago
A jewelry store is selling a set of 4 pairs of gemstone earrings for $58, including tax. Neva and three of her friends want to b
Mnenie [13.5K]
Thank you for posting your question here at brainly. I hope the answer will help you. Feel free to ask more questions.
The  solve a multiplication equation to find out how much each person should pay. is <span>4g=$58, g=$14.50</span>

4 0
3 years ago
Other questions:
  • What is the answer to this math problem, g=c+x
    8·1 answer
  • A woman has 14 different shirts: 10 white shirts and 4 red shirts. If she randomly chooses 2 shirts to take with her on vacation
    12·1 answer
  • A sample of five words was randomly selected from a 200-page book. The average number of letters of the five words was calculate
    8·2 answers
  • A boy walks 5 ķm at vkm/hr. He then cycles 15 km at 2v km/hr. In terms of v, write down the time taken in hours
    10·1 answer
  • Y = 2x - 15 y = 5x solve using systems of equations
    13·2 answers
  • What is the surface area of a cube 20 cm, 20 cm, and 20 cm?
    7·2 answers
  • When rolling a number cube,
    5·1 answer
  • What is 15 percent of 20
    7·2 answers
  • If x = 7, what is the value of 3 times x²​
    7·1 answer
  • A right rectangular prism has a square base, with sides that are each 2 meters in length. The height of the prism is 34 meters.
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!