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
fiasKO [112]
2 years ago
10

What is the equation of the directrix?

Mathematics
1 answer:
Brums [2.3K]2 years ago
6 0

The equation of the directrix is y = -5

<h3>How to determine the directrix equation?</h3>

The equation is given as:

(x -1)^2 = 12(y + 2)

Express 12 as a product of 4 and 3

(x -1)^2 = 4 * 3(y + 2)

The parabola is represented as:

(x -h)^2 = 4p(y - k)

Where the directrix is

y = k - p

By comparison, we have:

k = -2 and p = 3

So, we have:

y = -2 - 3

Evaluate

y = -5

Hence, the equation of the directrix is y = -5

Read more about directrix at:

brainly.com/question/2131669

#SPJ1

You might be interested in
Please help! Correct answer only!
Irina-Kira [14]

Answer:

<em>" Expected Payoff " ⇒ $ 1.80 ; Type in 1.80</em>

Step-by-step explanation:

Take the probability of winning into consideration;

Total Number of Tickets - 500,\\Tickets 1 Person Can Enter - 1 Ticket,\\\\Probability of Winning - 1 / 500,\\Money Won - 900 Dollars,\\\\Proportionality - 1 / 500 = x / 900 - where, x = " Expected Payoff "\\1 / 500 = x / 900 - CrossMultiplication,\\\\500 * x = 900,\\x = 900 / 500,\\x = 1.80 Dollars Won!\\\\Conclusion ; x = 1.80 Dollars

<em>Solution ; " Expected Payoff " ⇒ $ 1.80</em>

3 0
3 years ago
What equation(s) represent joint variations? check all that apply c=2pi z=3x/y y=3x+2 w=abc/4 v=lwh
Alinara [238K]

Answer:

Step-by-step explanation:

Joint variations occurs when one variable depends on the value of two or more variables. The variable varies directly or indirectly with the other variables combined together. The other variables are held constant. From the given examples, the equation(s) that represent joint variations are

1) z = 3x/y

z varies directly with x and inversely with y.

2) w = abc/4

w varies inversely with a,b and c. 4 is the value of the constant of variation.

7 0
3 years ago
Connor bought a pack of 4 notebooks for $8.20.What was the unit price
hoa [83]
8.20
------ = 2.05$/Notebooks
4
What I did I divided the price/ the notebook and found the answer 
6 0
4 years ago
Emily is packing her bags for her vacation. She has 6 unique Fabergé eggs, but only 3 fit in her bag. How many different groups
Serjik [45]

she can take 20 because 6c3=20

6 0
4 years ago
If an egg is thrown up and off the roof of a 100 foot building with an initial upward velocity of 10 feet per second, how long u
Deffense [45]
The equation of the height as a function of time for this case is given by:
 h (t) = - 16t ^ 2 + 10t + 100
 By the time the egg hits the ground we have:
 -16t ^ 2 + 10t + 100 = 0
 We look for the roots of the polynomial:
 t1 = -2.2069555463432966
 t2 = 2.8319555463432966
 As it is about time, we use the positive root:
 t = 2.83 s
 Answer:
 
it hits the ground at:
 
t = 2.83 s
8 0
4 years ago
Other questions:
  • Which is equivalent to 3(2x-4)+4x-2
    11·2 answers
  • What to numbers go into 106
    8·2 answers
  • If a piece of ribbon is 5 and 1 over 2. Feet long, how long is it in inches? 33 inches 55 inches 60 inches 66 inches
    9·2 answers
  • If the domain of the function <br>f (x)=2x^2-8 is (-2,3,5) then the range is​
    15·1 answer
  • Factor completely x^3 + 6x^2 + 8x + 48
    12·1 answer
  • Which of the following is equivalent to 0.13 repeating?
    13·1 answer
  • ABC is dilated by a factor of 3 to produce A'B'C'.
    14·2 answers
  • What does the expression (20-w)w represent
    15·2 answers
  • Use the Pythagorean identity. (x2 - y²)2 + (2xy)2 = (x2 + y2)2, to create a Pythagorean triple.
    9·1 answer
  • ASAP PLEASE: WORTH 100 points!!
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!