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
borishaifa [10]
3 years ago
15

Write the equation of a hyperbola with vertices (0, -4) and (0, 4) and foci (0, -5) and (0, 5).

Mathematics
1 answer:
andre [41]3 years ago
7 0
Check the picture below.  So, more or less looks like so.

notice, the center is clearly at the origin, and notice how long the "a" component is, also, bear in mind that, is opening towards the y-axis, that means the fraction with the "y" variable is the positive one.

Also notice, the "c" distance from the center to either foci, is just 5 units.

\bf \textit{hyperbolas, vertical traverse axis }\\\\
\cfrac{(y-{{ k}})^2}{{{ a}}^2}-\cfrac{(x-{{ h}})^2}{{{ b}}^2}=1
\qquad 
\begin{cases}
center\ ({{ h}},{{ k}})\\
vertices\ ({{ h}}, {{ k}}\pm a)\\
c=\textit{distance from}\\
\qquad \textit{center to foci}\\
\qquad \sqrt{{{ a }}^2+{{ b }}^2}
\end{cases}\\\\
-------------------------------\\\\

\bf \begin{cases}
h=0\\
k=0\\
a=4\\
c=5
\end{cases}\implies \cfrac{(y-{{ 0}})^2}{{{ 4}}^2}-\cfrac{(x-{{ 0}})^2}{{{ b}}^2}=1\implies \cfrac{y^2}{16}-\cfrac{x^2}{b^2}=1
\\\\\\
c=\sqrt{a^2+b^2}\implies c^2=a^2+b^2\implies \sqrt{c^2-a^2}=b
\\\\\\
\sqrt{5^2-4^2}=b\implies \boxed{3=b}
\\\\\\
\cfrac{y^2}{16}-\cfrac{x^2}{3^2}=1\implies \boxed{\cfrac{y^2}{16}-\cfrac{x^2}{9}=1}

You might be interested in
Y = -x + 5<br> Write in standard form. PLEASE SHOW WORK! WILL GIVE BRAINLY!
strojnjashka [21]

Answer:

x+y=5

Step-by-step explanation:

y=-x+5

add x to both sides

x+y=5

8 0
3 years ago
Read 2 more answers
F(x) = 3x^2+7<br> Find f(f(x)
Scrat [10]
Hhhhhjjuhyhyhgtgtgrgrgrfrfrfrf
3 0
3 years ago
A recipe shows that yeast needed for a bread recipe 2 1/3 ounces. Which of the following decimals is eqivalent to this number?
Olin [163]
The correct answer is B. 2.3. 

For us to know the equivalent decimals of a fraction, you have to use the numerator as the dividend, and the denominator will be your divisor.

The equation will be:

2 + ( 1 / 3 ) 
2 + (0.33333333)
= 2.333333

If you'll have it rounded off, you'll get the answer 2.3.

8 0
3 years ago
Read 2 more answers
Write two word phrases for each expression. t + 23
e-lub [12.9K]

Answer:

a number, t, increased by 23

a number, t, plus 23

Step-by-step explanation:

Have a lovely rest of your day/night, and good luck with your assignments! ♡

 ~ ren ⚘

8 0
2 years ago
Which of the following is an example of a null hypothesis? A. The average quantity of detergent put into a box by this filling m
gavmur [86]

Answer:

C

Step-by-step explanation:

Null hypothesis: hypthesis to test that there is no significant difference between the specific characteristic of a population. Analysts look to reject a null hypothesis

A. the shipping company's average delivery time is different from 3 days. This is an example of alternative hypothesis. Null hypothesis is writtien as a claim

B. This again is an example of alternate hypthesis. The claim that mean is 0.03 is rejected with the results

C. This is a claim

D. This is rejection of a claim that mean is 1 pound

E. This is rejection of claim that average delivery time is 3 days.

5 0
3 years ago
Other questions:
  • What is the simplify the following:<br> SimplifyL: (2xy^3)^2(xy)^3
    7·1 answer
  • HURRYYY HELP! Triangle ABC is congruent to triangle FDE, and both triangles have the same orientation, as shown. What is the slo
    9·1 answer
  • Find the size of angle BAC. Give your answer to 3 significant figures
    15·1 answer
  • 22m = how many cm?<br> Check the comments
    15·1 answer
  • Find the x of (2x+8)+(71-x)=180
    6·2 answers
  • What is the square root of negative four
    6·1 answer
  • Step by step explanation please so I can see how to do it
    15·1 answer
  • Cathy bought of a gallon of milk. She drank of a gallon.<br> How much milk did she have left?
    14·2 answers
  • Fourteen hours after a convict escapes from prison, a guard begins to pursue him. If the convict travels at eight mph on foot an
    5·1 answer
  • Ik most of us have finals coming up. Some of us are stressing alot as well,
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!