Find the equation of the parabola whose vertex is the origin and whose directrix is x = -4

Answers

Answer 1

Try this option:

1) if V(0;0) and x= -4, then common view of the required equiation is:

(y-k)²=4p(x-h), where focus is in (h-p;k), the vertex is in (h;k), the directrix is x=h+p, p<0 and y=k is simmetry axis;

2) if the V(0;0), then h=k=0 and the required equiation is:

y²=4px;

3) if the directrix equation is x=h+p, where h=0, then p= -4 (according to the condition the directrix equation is x= -4), then the required equation is:

y²= -16x

answer: y²= -16x


Related Questions

Please anyone help me on this

Answers

Answer:

expand (f-g)(-6)

Expand by distributing terms.

-6f-6\times -g

−6f−6×−g

Regroup terms.

-6f-(-6g)

−6f−(−6g)

Remove parentheses.

-6f+6g

−6f+6g

Step-by-step explanation:

Tues. 2.15 Question: Mr. Becker solved the
following equation: 10x = 3x + 21. He got an an
answer of X=2. Did Mr. Becker get the answer
correct? If not, what did he do wrong.

Answers

Answer:

YES X=3

Step-by-step explanation:

10x=3x+21

-3x    -3x

7x=21

________ . *DIVIDE BY 7 on each side

7     7

X=3

"For which value of c does Limit of f (x) as x approaches c not exist?"

Answers

The limit does not exist at the jump discontinuity at x = -2.

From the left, the green-ish curve approaches 4; from the right, the orange curve approaches 6. These one-sided limits are not equal, so the two-sided limit does not exist.

A limit of a function does not exist at a point x is the limit of f(x) approaching x to the left is different of the limit of f(x) approaching x to the right.

Using this concept, we find that the limit does not exist at c = -2.

Points we need to verify:

Points in which there are changes in the definition of the function, which are:

x = -4, -2, 2, 4

At x = -4

The definitions are bunched together, so the lateral limits are the same, and the limit exists.

At x = -2

As the function approaches x = -2 to the left(x < -2), its value is close to 4, so the limit is 4.

As the function approaches x = -2 to the right(x > -2), its value is close to 6, so the limit is 6.

Since the lateral limits are different, for c = 2, the limit does not exist, and this is the correct answer.

At x = 2

The lateral limits are the same, the only thing that changes is the definition of the function at x = 2, which does not affect the limit, which exists.

At x = 4

The definitions are bunched together, so the lateral limits are the same, and the limit exists.

For more on lateral limits, you can take a look at https://brainly.com/question/23405626

Help me outttttt !!!!!!!!

Answers

It’s A the dark blue one the first one

Mr. Lopez had $75, he bought a gift for his wife for $45. What
percentage of his money did he spend on the gift for his
wife?
DUE TODAY

Answers

60%, i believe. i’m soso sorry if it’s wrong

Solve question above ^
w=?

Answers

Answer:

w = -6/7

Step-by-step explanation:

-1w/2 - 3/5 = 1w/5

multiply by 10 to eliminate fractions:

-5w - 6 = 2w

-6 = 7w

w = -6/7

a salt container has the shape of cylinder the radius of the container is 1.5 inches and the height is 6 inches what is the surface area of the container? ​

Answers

6 oz I don’t want you to get hit with a belt bud

what is 28.3 percent of 100?​

Answers

Answer:

28.3%

Convert fraction (ratio) 28.3 / 100 Answer: 28.3%

You had it all along. If it is out of 100 then it is the same score you have.

Answer:

seems like a F if ur talking about grade wise. if not then its 28.3%.

Find x
X + 50
X + 10

Answers

X = 60

Explanation:

x+50+x+10+90+90=360

x + x = 120

x = 120/2

x= 60

Hope it’s right
Best luck with your studying

Answer:

x = 60

Step-by-step explanation:

(x + 50)° + (x + 10)° = 180° (interior angles on the same side of transversal)

(2x + 60)° = 180°

2x + 60 = 180

2x = 180 - 60

2x = 120

x = 120/2

x = 60

The formula to convert from Celsius to Fahrenheit is F = 1.8C + 32. Use this formula to
complete the statements below. Roudd your answers to the nearest tenth as needed.

If the temperature is 63 °F, that is equivalent to
°C.
If the temperature is 44 °C, that is equivalent to
°F.

Answers

Answer:

63F is 17.222C

44C is 111.2F

hope this helps :)

Step-by-step explanation:

cual es la antiderivada de f (x)=3x-4?​

Answers

5 because if u times 3 times three -4 u get 5

Espanos
Estimate a 10% tip on a bill of $132.17 by first rounding the bill amount to the nearest ten dollars.

Answers

Answer:

Tip= $13

Step-by-step explanation:

Giving the following information:

Tip rate= 10% = 0.1

Bill= $132.17

First, we need to round the bill by the nearest ten dollars. In this case, we round to the lower tenth:

Bill= 132.17 = 130

Now, we can determine the tip:

Tip= bill*tip rate

Tip= 130*0.1

Tip= $13

Can someone help me on this plz I need help?

Answers

Answer:

no.4

Step-by-step explanation:

first we have to separate the triangle then apply theorem of pythagoras rule that's where we are going to get the value of x

mr. walter is remodeling his house and wants to design a rectangular garden in the backyard. the width of the garden, W(A), in feet, is modeled by this equation, where A is the area of the garden, in square feet. (equation shown in image)
What is the rate of change of the garden’s width when the garden’s are changes from 289 square feet to 400 square feet?

Answers

Answer:

Step-by-step explanation:

It’s d sir

Answer:

correct option is D

Step-by-step explanation:

с
ABC and AED are straight lines.
BE and CD are parallel.
В.
AC = 12.3 cm
AB = 8.2 cm
BE = 3.8 cm
a) Work out length CD.
А
E
D
AD = 9.15 cm
b) Work out length ED.

Answers

9514 1404 393

Answer:

  a)  CD = 5.7

  b)  ED = 3.05

Step-by-step explanation:

Triangle ABE is similar to triangle ACD by AA similarity. This means we can write the proportions ...

a) CD/BE = AC/AB

  CD = BE(AC/AB) = 3.8(12.3/8.2)

  CD = 5.7

__

b) ED/AD = BC/AC

  ED = AD((AC -AB)/AC) = 9.15(12.3 -8.2)/12.3

  ED = 3.05

Answer:

Step-by-step explanation:

Mateo says each of the fractions below would be to the right of 1 on a number line . True or false 3/2 , 2/5, 5/3, 1/4 .

Answers

False. 1/4 is less than 1, so it would be on the left.

I NEED HELP WITH THIS QUESTION ASAP!!!!

Answers

SA = 4(1/2(LH)) + LW
SA = 4(1/2(8x9)) + 8 x 8
SA = 4(36) + 64
SA = 208 in^2
Answer above me is right but can you help me to

BRAINLIEST! Please! Please! Please! I need help understanding how to figure it out!!!
Thanks

Answers

Given :

Volume of pyramid = 2,433,400 cubic meters

Height of pyramid = 138 meters

To find:

S = [tex]\sqrt{\frac{3v}{h} }[/tex]

Steps:

S = [tex]\sqrt{\frac{3v}{h} }[/tex]

S = [tex]\sqrt{\frac{3 * 2,433,400}{138} }[/tex]

S = [tex]\sqrt{\frac{2,433,400}{46} }[/tex]            (dividing 138 by 3 gives 46)

S = [tex]\sqrt{\frac{1,216,700}{23} }[/tex]             (dividing numerator and denominator by 2)

S = [tex]\sqrt{52900}[/tex]

S = 230 square meter

The equation is equal to 230 square meters

Happy to help :)

If you didn't understand any topic pls ask

Can I have help with this question?

Answers

Answer:

angle 1 will be 64° and angle 2 will be 116°

Which value of x makes the following equation true?

5.8(x - 4) = -0.2x + 6.8

A. 5
B. 4
C. 8
D. 7

Answers

Its Letter A

Solution
5.8(5 - 4) = 5.8
-0.2x + 6.8 = 5.8

2s+13+15s and 17s+13= help plsss

Answers

Answer:

17s + 13 = 0

17s = -13

s = -13/17

- 3. - 2. - 1,0, 1,
If n represents the position of the number in the sequence, which expression can be used to
determine the nth term?
A.n +1
B.2n - 4
C.n-3
D. n-4

Answers

Answer:

D. n-4

Step-by-step explanation:

In this question:

The term at position 1 is -3

The term at position 2 is -2

The term at positon 3 is -1

That is, at each position, the term is the position subtracted by 4. So the correct answer is given by option D.

Find the sum of all numbers 1 to 1000

Answers

Answer:

it is 500500

Step-by-step explanation:

learned this fact a few years ago and it stuck with me.

A baseball player hit 345 out of 1,000 balls pitched to him. What are the chances he gets a hit when he steps up to the plate?

Answers

Answer:

0.345

Step-by-step explanation:

hits/at-bats = 345/1000 = 0.345

The probability of a hit, any particular time he goes to bat. is 0.345.

The problem does not request any particular format, so 0.345 is a perfectly good answer.

In baseball, that is called a 'batting average', and is actually expressed that way - as a decimal - in a player's statistics.

On the other hand, if we did want to express the probability as a percentage, we would do this:  

0.345 * 100% = (0.345 * 100) % = 34.5 %

Hope this helps

What pair of numbers shows a common factor and a common multiple of 15 and 18?​

Answers

Answer:

3 is the GCF

Step-by-step explanation:

that is your answer

Answer:

Common factors of 15 and 18

Factors for 15: 1, 3, 5, and 15. Factors for 18: 1, 2, 3, 6, 9, and 18.

Step-by-step explanation:

Brad has 24 strands of blue holiday lights and 32 strands of white holiday lights. He wants to make displays of lights for customer's yards. Each display must have the same number of strands in it. Without mixing colors, what is the greatest number of strands of lights that Brad can put in each display?

Answers

Answer:

He could make 8 strands of 3 blue strands and 4 white strands lights

HELP ME PLEASE . IF YOURE GOOD GEOMETRY HELP

Answers

Oh these are easy, I’ll explain.
To start off, the answer is 11.
I got this by subtracting DE (57) and BC (35). You get 22. Then, you divide the result of the subtraction by 2, which is 11.
Let me know if you need me to explain in more depth, and give brainliest if I’m correct tysm.

help. plz. i really need it

Answers

I think is b not sure

what is the total amount of sap the trees produced that day?​

Answers

Answer:

yep its 5gallons

Step-by-step explanation:

What are the vertices of AA'B'C'if AABC is dilated by a scale factor of 1/3​

Answers

Answer:

B

Step-by-step explanation:

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