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
emmasim [6.3K]
3 years ago
14

Explain how to find the coordinates of the focus of a parabola with vertex (0,0) and the directrix y=5

Mathematics
1 answer:
Ghella [55]3 years ago
7 0
Keep in mind that, the directrix is "p" distance units away from the vertex, and the focus point is also "p" distance  units from the vertex but in the opposite direction, so in short the vertex is half-way between both of them.

in this case the vertex is at the origin, and the directrix 5 units above it, so that means the parabola is vertical and opening downwards, like the one in the picture below, and the focus point is 5 units the other way.

You might be interested in
Dana draws a triangle with one angle that has a measure of 40∘.
OLEGan [10]

Answer:

140°

Step-by-step explanation:

<u>Given:</u>

Dana draws a triangle with one angle that has a measure of 40∘.

<u>Question asked:</u>

What is the measure of the angle’s adjacent exterior angle?

Solution:

<u>As we know:</u>

<u><em>Sum of the adjacent interior and exterior angles is 180°.</em></u>

Interior angle = 40°

Adjacent exterior angle = ?

Interior angle + Adjacent exterior angle = 180°

40° + Adjacent exterior angle = 180°

<u>By subtracting both sides by 40°</u>

40° - 40° + Adjacent exterior angle = 180° - 40°

Adjacent exterior angle = 140°

Therefore, the measure of the angle’s adjacent exterior angle will be 140°.

4 0
3 years ago
Solve x2−4x−12=0 by completing the square. A x=−2 B x=−6 or x=2 C x=−2 or x=6 D x=−6
MrRissso [65]

Answer:

B x=-6

x=2

Step-by-step explanation:

8 0
2 years ago
Sarah will buy bracelets and necklaces in order to sell them in her schools fund raising activity. The bracelets cost $2 and the
Alborosie

Answer:

The answer will be:

b ≥ 10

Step-by-step explanation:

The bracelets cost $2 and the earrings cost $3.

She needs to make at least $60.

She will need to sell more than 10 bracelets.

b = bracelets

e = earrings

2b+3e ≥ 60

6 0
3 years ago
What is the correct operation to solve for x
FinnZ [79.3K]
I don’t know I’m sorry
3 0
3 years ago
Hey! please help posted picture of question
lara31 [8.8K]
The answer is D) 2

Since it is given that there have been 9 slices eaten, we can assume that whatever amount of slices were cut in total will have 9 reduced from the amount. With the fraction 2/11, we know 11-9=2, which fits perfectly into this description so 2 slices have not been eaten.
3 0
3 years ago
Read 2 more answers
Other questions:
  • Which of the following is the equation of a line in slope-intercept form for a line with slope =4 and y-intercept at (0,2)
    7·2 answers
  • You just bought two black guinea pigs, one male and one female, of the same genotype from the pet store that are known to be het
    9·1 answer
  • A quantitative variable that has a finite or countable number of values is called
    15·1 answer
  • A box is filled with pennies, nickels, and dimes in a ratio of 2:3:4. If the total number of coins in the box is 1620, how many
    12·1 answer
  • Find the difference. 43.79 - 7.056
    15·2 answers
  • Ns algebraically. (6 pts)
    7·1 answer
  • In the 2002 - 2003 NBA regular season, the Sacramento Kings
    6·1 answer
  • For each situation, decide whether you would need to find the circumference or area and explain why.
    5·1 answer
  • Aidan buys 3 bicycles for $252. Each bicycle was the same price.
    6·2 answers
  • Help its due today ................................
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!