Mathematics High School

identity the vertex, focus, and directrix

Identity The Vertex, Focus, And Directrix

Answers

Answer 1

Answer:

vertex: (0, 0)

focus: (-7, 0)

directrix: x=7

Step-by-step explanation:

divide both sides by (-1/28) and you will get y^2=-28x-28=-4p ----> p=7focus=(-p, 0) ------> (-7, 0)directrix=x=p  ---------> x=7

Related Questions

12x - 6y = 13
8x - 4y = -21

Answers

Answer:

24

Step-by-step explanation:

24

Simplify the fraction to lowest terms, and enter your answer below as a
fraction, using the slash mark ( 7 ) as the fraction bar.
4
12

Answers

Answer:

1/3

Step-by-step explanation:

Write the polynomial 4x+5x^3+17x^5-7 in descending order.

Answers

Answer:

5x+4x^17+3x^5-7

Step-by-step explanation:

Help with number 1 please.

Answers

Answer:

Step-by-step explanation:

PLZ HELP WITH MATH!!!

Answers

Answer:

128 in.^2?

Step-by-step explanation:

a rectangle is also a parallelogram, so find the area of the rectangles.

if it is a 30-60-90 triangle, 8 inches is x, and to find the sides, it is either (x)sqrt(3), or in this case, 2x, so 16x8= 128?

There are 136 students at the dance. 62 of the students are females. What is the ratio of boys to girls at the dance? PLEASE HURRY!!!

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The ratio of boys to girls is 74:62

74 represents the boys

62 represents the girls

What is the correct answer?

Answers

Answer:

F

Step-by-step explanation:

The answer to your question is F

Decide whether 2 x + 8 and 2(× + 4) + 4 are equivalent expression. explain how you know.​

Answers

Answer:

They are not equivalent

Step-by-step explanation:

2(x+4)+4

First you distribute the 2.

2x+8+4

Then combine like terms

2x+12

Therefore they are not equivalent

Can someone help me quick. I really need help!! I’ll mark brainliest!! Please & thank youuu!

Answers

~Kindly see the attached picture!

✧ Hope I helped ! ✧

Have a wonderful day / night ! ♡

Let me know if you have any questions regarding my answer ツ

[tex] \underline{ \underline{ \mathfrak{Carry \: on \: learning}}}[/tex] !! ✎

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Answers

Answer:

A

Step-by-step explanation:

Answer:

C

Step-by-step explanation:

1. P(E)>P(D) (Event E is more likely to occur, therefore it has a greater probability)

2. P(E)>0.5 (The probability of event D is given as 0.5, so rewrite P(D) in the inequality)

3. 0.5 is equal to 0.5 and 0.1 is less than 0.5, so you can rule out options A and D

4. This leaves us with options 1.5 and 0.9, but it is impossible to have a probability that is greater than equal to one, so you can immediately rule out B

5. After this elimination process, the only remaining answer is C) P(E)=0.9

HELP ME PLEASE I BEG YOU AND I WILL VOTE YOU BRAINLIEST IF YOU REALLY HELP!!!!

Answers

The answer to your question is (A, -3,-5)

Answer:

The correct answer is A(-3,-5)

Find the measure of each numbered angle on this Triangle.

Answers

Answer:

m<1 = 69

m<2 = 37

m<3 = 106

m<4 = 21

Step-by-step explanation:

Solve the system of linear equations by elimination.

2x+5y=16
3x−5y=−1

Answers

The Answer is (3,2)
The answer is 3,2 hope this helps

i have no idea where to plot the points

Answers

Answer:

1/4 is slope\

Step-by-step explanation:

1/4 it’s going on a down slope

Half the number of guesses are
less than what number?

Answers

Answer:

C. 74

Step-by-step explanation:

add up all the numbers but not the value so you have 18 numbers. divide that by 2 and get 9. so 74 is between 73 and 78 so it divides the 18 numbers evenly into 9 and 9.

Can someone plz help me with this!!!

Answers

Answer:

Yes it does

Step-by-step explanation:

-4 times -5 equals 20, then you subtract -7 which gives you 27

which number is composite 5,11,9,2

Answers

The number 11 is combosit

Answer:

11

Step-by-step explanation:

trust

Could you guys please help me solve this basic math. PLS OMG ITS DUE :(

Answers

the answer is -7. 21- -3=-7

find the value of given expression

[tex] \sqrt{25 \times 625 \times \times 25} [/tex]

​

Answers

Answer:

±625

Step-by-step explanation:

[tex]\sqrt{25 x 625 x 25}[/tex]

[tex]\sqrt{390625}[/tex]

±625

Answer:

√(25×625×25)√{5²×25²×5²)=±(5×25×5}=±625 is your answer

Can someone helpppp plssss

Answers

Answer:

angleQ+angleR is 180degrees because of the properties of isoceles trapezoid. So, if you set equation and solve, you'll get the fact that x is 12, and angleR is 130degrees, and angleQ is 50degrees. According to the properties of isoceles trapezoid, angleQ is the same as angleT. So, angleT is 50degrees

Answer:

Step-by-step explanation:

PLEASE HELP I WILL GIVE BRAINLIEST ​

Answers

Answer:

If using one pound of pumpkin the baker needs to use 4 pounds of flour mixture

Step-by-step explanation:

step 1: I am going to convert the measurements

into decimals

8/5=1.6

2/5=.4

step 2: I will use cross multiplication to find out how much pumpkin for one pound of flour

1.6=.4

 1=?

1*.4=.4/1.6=.25

step 3:  I will convert .25 into a fraction

.25=1/4

for every 1/4 pound pumpkin, I will use 1 pound of flour

which is why

If using one pound of pumpkin the baker needs to use 4 pounds of flour mixture

637m as a fraction of 7.7km

Answers

Answer:

637/7700

Step-by-step explanation:

7.7 km = 7700 m

PLS HELP!!! 7TH GRADE MATH

Answers

Answer:

The first picture is 72 ft²

Step-by-step explanation:

Answer for 1:

242

Answer for 2:

214.57

Answer for 3:

88.79

Explanation:

I used Goggle

what is the missing length?

Answers

7.9^2 + 8.5^2= sqrt 134.66 = 11.60 ft

Can you please help me

Answers

Answer:

Q1: equal

Q2: smaller

Q3:equal

Q4 smaller

Q5: bigger

Step-by-step explanation:

PLZ IF RIGHT I WILL GIVE BRAINLIST: One year, the population of a city was 64,000. Several years later it was 53,120. Find the percent decrease.
Ans=______%

Answers

the answer is it decreased 17%

im not 100% btw

Pls help me with the answer to question 3

Answers

i the pictures aren’t working
The maximum volume that Tom can fit in the box is 144 in^3. We know that the formula for the volume of the box is V=l*w*h, so when you plug in the numbers from the problem, it becomes V=6*6*4. When you multiply those numbers, you get 144. When you add your units, the answer is 144 in^3. If you need any more help or any clarification, please let me know and I will be happy to help!

Find the area of a rectangle with side lengths 5 /8 ft. And 1/ 3 ft. A 1-foot by 1-foot square is shown. The square is divided into 8 rows and 3 columns. Therefore, there are a total of 24 equal-sized cells inside the square. A. 5 /11 ft 2 B. 1 11/ 12 ft 2 C. 6/ 11 ft 2 D. 5 /24 ft 2

Answers

Answer: 5/24 ft²

Step-by-step explanation:

To find the the area of a rectangle with side lengths 5/8 ft and 1/3 ft, we need to know that the area of a rectangle is gotten by multiplying the length by the width.

In this case, the area of the rectangle will be:

= 5/8 × 1/3

= 5/24 ft²

PLEASE HELP ILL GIVE BRAINLIEST
PLEAZE SHOW WORK

Answers

Answer:

A

Step-by-step explanation:

divide it

45/.7

the graph of y=x^2-4x is shown. name a zero of the function below

Answers

Answer:

0 and 4

Step-by-step explanation:

y = x^2 - 4x can be factored as follows:  y = x(x - 4).

We find the zeros by setting this factored form equal to zero and solving for x:

x(x - 4) = 0, or x = 0, or x = 4.

The two zeros of this function are 0 and 4.

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