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
Lisa [10]
3 years ago
5

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:
Eduardwww [97]3 years ago
8 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

andreev551 [17]3 years ago
3 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.

You might be interested in
What is the mode of the data set?
saw5 [17]

Answer: 92 which is choice D

Look at the right side of values for the digit that comes up the most. In this case, it would be '2' in the second row. It shows up 3 times. Those leafs pair up with the stem of 9 to form the full value 92. So we have 92 show up three times which is the most frequent value.

The data set would expand out to

85, 88

92, 92, 92, 98

105, 106, 106, 109

113

126, 127

5 0
3 years ago
A toy soldier set a selection of 6 weapons for 3 soldiers.
Rudik [331]

Answer:

2

Step-by-step explanation:

4 0
3 years ago
Write a + - x or ÷ sign in each box to make the equation true <br><br> 7 18 45 3 2 = 139
irina [24]
I mean, I don't know how to explain a generic way to solve this. Ask me about the specific train of thought if you are interested:

7 * 18 + 45 / 3 - 2 = 139
4 0
3 years ago
(c) what is the probability that diameter is within 2 mm of the mean diameter? (round your answer to three decimal places.)
postnew [5]
????????????????????????????????????????????????????????????
7 0
3 years ago
Can sumone pls help me i frfr dont understand this
dybincka [34]

Answer:

No more

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
Other questions:
  • Please help <br><br> A. 13<br> B. 26<br> C. 40<br> D. 36<br> D. 41
    8·1 answer
  • For a class trip, a total of 116 ticket need to be purchased. The cost of an adult ticket is $17000. The cost of a child ticket
    10·2 answers
  • 21 is 84 percent of what number
    14·1 answer
  • What is the value of Tan θ?
    10·1 answer
  • Zack had a grade of 90% on his geography test. If there were 70 points possible on the
    12·2 answers
  • Solving systems by Substitution Homework y=x+4 y=x-3​
    10·1 answer
  • One car alarm is set to go off every 10 seconds another car long is it to go every five seconds and a good car alarm is set to g
    12·1 answer
  • Which of the given functions could this graph represent?
    15·2 answers
  • Y=f(x)=2^x find f(x) when x=1
    12·2 answers
  • What is 1 times 3 plus 4 divided by 2?? please help me
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!