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
kykrilka [37]
3 years ago
9

(Q2) Determine the eccentricity, the type of conic, and the directrix for r = 9/1+cos theta

Mathematics
1 answer:
g100num [7]3 years ago
3 0

Answer:

The answer is (d) ⇒ eccentricity = 6 , hyperbola , directrix  x = 3/2

Step-by-step explanation:

∵ r = ek/(1 ± ecosФ)

∵ r = 9/(1 + 6cosФ)

∴ e = 6 ⇒ eccentricity = 6

∵ e > 1

∴ The conic is hyperbola

∵ ek = 9

∴ k = 9/6 = 3/2

∴ The directrix  x = 3/2

You might be interested in
Triangle ABC has vertices at A(1,2) B(4,6) and C(4,6) in the coordinate plane. The triangle will be reflected over the x-axis an
k0ka [10]
You should know that you can predict changes in coordinates after translations without a graph or anything like that.

(x, y) reflected over the x axis = (x, -y)
(x, y) reflected over the y axis = (-x, y)
(x, y) rotated 90 degrees around the origin = (y, -x)
(x, y) rotated 180 degrees around the origin = (-x, -y)
(x, y) rotated 270 degrees around the origin - (-x, y)

So here's our set of points.
A(1, 2), B(4, 6), C(4, 6)

Here's those points reflected over the x axis.
A'(1, -2), B'(4, -6), C'(4, -6)

And here's <em>those</em> points rotated 180° around the origin.
A''(2, -1), B''(6, -4), C''(6, -4)

I think you made a mistake writing down the question, though, because B and C are the same yet you say ABC forms a triangle. You should be able to go through this process with whatever the coordinate was supposed to be.
4 0
3 years ago
Need help asap please!!!
weeeeeb [17]

Answer:15

Step-by-step explanation: 7 and a half times 2 is 15

6 0
3 years ago
Read 2 more answers
What is 1/3. of 4/5 I need help
levacccp [35]
To do this multiply 1 by 4, then 3 by 5.  4 over 15 is your answer.
6 0
3 years ago
Read 2 more answers
The figure is made up of 2 rectangles and 2 right triangles.
Zarrin [17]

Answer:

area = 277 units²

Step-by-step explanation:

area = (25 x 5) + (8 x 13) + (8 x 6) = 277 units²

7 0
3 years ago
-1(2x+3)-2(x-1) simplified
Archy [21]

Answer:djd

Step-by-step explanation:weljfnw

6 0
3 years ago
Other questions:
  • David and Ryan go to the movie theater and purchase refreshments for their friends. David spends a total of $24.75 on 3 bags of
    9·1 answer
  • 45/28 is what in a mixed number??
    15·1 answer
  • What is 805 ten equal to
    6·1 answer
  • Someone help me with this algebra question please 100% correct only
    13·1 answer
  • Have 5 pieces of candy and 29 people. How many pieces are the candy divided into for everyone to get a piece.
    10·1 answer
  • How many solutions are there to the system of equations? {-4x - 5y = 5 -0.08x + 0.10y = 0.10} A) no solutions B)one solution C)t
    12·1 answer
  • On a sketch of a mural,3 inches represents one foot in the mural. A door in the sketch is 2 inches wide by 5 inches high. What i
    15·1 answer
  • Eighth grade
    12·1 answer
  • Please help me fast!!!!!!!!!!
    9·2 answers
  • Identifying Perfect Squares
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!