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
alukav5142 [94]
3 years ago
11

Please help! An archway will be constructed over a walkway. A piece of wood will need to be curved to match a parabola. Explain

to Maurice how to find the equation of the parabola given the focal point and the directrix.
Mathematics
2 answers:
deff fn [24]3 years ago
7 0

Answer:

To solve the equation of the parabola, I need to use the distance formula and substitute the focal point in (x1-y1). Also, I will use the distance formula for the direct x. Since it is a straight line, the x part could be eliminated and the remaining part of the formula would be used, substituting the y for the given measurement of the direct x. The two unfinished formulas would be combined and then solved for the equation. f(x) would be the unit of measurement for the parabola.

Gwar [14]3 years ago
6 0

draw a perpendicular line from the directrix passing through the focus, this will be the line of symmetry. The vertex(h, k) will be located on the line half way between the focus and directrix. The distance from the focus to the vertex is called the focal length, call it a. The then equation is (x - h)^2 = 4a(y - k) the equation can be manipulated to y = 1/4a(x - h)^2 + k hope it helps

You might be interested in
A car travels 360 miles in a period of 180 minutes. Find the average velocity of the car in miles per hour over this time period
Serggg [28]
The simple formula for velocity is v=d/t.  Velocity equals distance divided by time.  360 miles divided by 180 minutes.  360/180=2.  The car travels at 2 miles per MINUTE.

Now, to change to miles per HOUR.  There are 60 minutes in an hour, so 2*60=120 miles per hour.

Answer: 120 mph
4 0
3 years ago
Read 2 more answers
Last year, the Humane Society found 96 homes for its stray kittens.
omeli [17]
32 homes. divide 96 by 3 because the 96 homes each took 3 kittens
3 0
2 years ago
Based on the data, is there a clear association between having been on an airplane and having visited another country?
Roman55 [17]

Answer:

If you have exited the country, you most likely took a plane. Therefore yes there is an association between having been on a airplane and visiting another country.

(Also do u go to CCA? Bc I had the same q on my math quiz in Mrs.Pfeiffer's class)

4 0
3 years ago
Worth points...... ;)
Artist 52 [7]

Answer: C. 4 friends will borrow 4 books each, 1 friend will borrow 3 books

Step-by-step explanation:

Friend 1 has 4 books

Friend 2 has 4 books

Friend 3 has 4 books

Friend 4 has 4 books

So far, that’s a total of 16 books.

Now add the 3 books of the 5th friend to that:

16 + 3 = 19

This is the way in which a group of friends can most evenly divide the 19 books.

pls mark brainliest if this helped. :)

7 0
3 years ago
PLEASE HELP I DONT UNDERSTAND I HAVE A FEW MIN TO SUBMIT
Lunna [17]

Answer:

Increasing: (\infty, -1) \cup (2, \infty)

Decreasing: (-1, 2)

Step-by-step explanation:

So when an equation has and odd degree, it will go in the opposite direction on both ends, so if y went towards infinity as x went towards infinity, then y would go towards negative infinity as x goes towards negative infinity. In this case, by looking at the graph it has an odd degree, due to opposite end behaviors, although on both ends it's increasing because even though it appears that it's going down on the left side, that's only if you start from the right and go towards the left. So it's really increasing from negative infinity to -1, and then it decreases from -1 to 2, until it once again starts increasing from 2 to infinity. This can be represented as (-infinity, -1) U (2, infinity) for increasing and (-1, 2) as decreasing

4 0
1 year ago
Other questions:
  • What the answer for tje pythagorean
    10·1 answer
  • Prove that root3 (cosec (20))-sec (20)=4
    14·2 answers
  • Evaluate the expression for the given value of the variable.<br> |-3x-4|+|2-x^2 |-4x; x=-3
    11·2 answers
  • A fish tank hold 180 gallons of water and is leaking at a rate of 8 gallons per day. Are you second fish tank hold 160 gallons o
    10·1 answer
  • Terry has nuts and bolts 7:9 if terry has 36 bolts how many nuts does terry have
    6·1 answer
  • 20 Points!
    8·2 answers
  • What's 9+7 <br> Please help
    12·2 answers
  • Why do you subtract 90 from H? I don’t get it
    14·1 answer
  • What type of connection can you make between markups and tips or taxes? What type of connection can you make between markdowns a
    6·1 answer
  • How many terms dose 4x + 8y -1
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!