Mathematics College

A parabola can be drawn given a focus of (8,4) and a directrix of x = 6. Write the
equation of the parabola in any form.

Answers

Answer 1

9514 1404 393

Answer:

  x = 1/4(y -4)² +7

Step-by-step explanation:

A parabola can have the equation ...

  x = 1/(4p)(y -k)² +h

where the vertex is (h, k), and the vertex-to-focus distance is p.

The vertex is halfway between the focus and directrix, so has coordinates ...

  ((8, 4) +(6, 4))/2 = (7, 4)

The distance from the vertex to the focus is 8-7 = 1, so the equation can be written ...

  x = 1/4(y -4)² +7

A Parabola Can Be Drawn Given A Focus Of (8,4) And A Directrix Of X = 6. Write Theequation Of The Parabola

Related Questions

6.71 x 10^6 divided by 3.6185 x 10^4

Answers

Answer:

185.436

Step-by-step explanation:

10^6=1000000

6.71×1000000=6710000

10^4=10000

3.6185×10000=36185

6710000÷36185=185.436

I need help please and thanks
Number 9

Answers

Answer:

x= 1.75

Step-by-step explanation:

Which is the correct label for a right angle in the figure? (check picture for options and figure)​

Answers

Answer:

C

Step-by-step explanation:

Heyyy , help maybe please and thanks

Answers

Answer:

brian drink 7 cups of milk

Step-by-step explanation:

What is the in minute taken to cover 8.1km at an average speed of 5m/s

Answers

9514 1404 393

Answer:

  27 minutes

Step-by-step explanation:

The relevant relations are ...

  1 min = 60 s

  1 km = 1000 m

  time = distance/speed

__

  time = (8.1 km)×(1000 m)/(1 km)/(5 m/s)×(1 min/(60 s))

  = (8.1×1000)/(5×60) min = 27 min

It takes 27 minutes to cover 8.1 km at a speed of 5 m/s.

Write 0.00000000568 in proper scientific notation.

Answers

Answer:

568 to the negative power of 8

so. -8

568

answer I'll give brainliest to the first one
SERIOUS ANSWERS ONLY​
10 points

Answers

Answer:

1: 24 girls

2: 640

3: 300

4: 3/10

5: 42

Step-by-step explanation:

1: 2/5 × 40

80÷ 5

16

girls = 40- 16

= 24

2: 1/3 × 960

960 ÷3

= 320

Left = 960 - 320

= 640

3: 3/8 × 480

1440 ÷ 8

= 180.

Left = 480 - 180

= 300

4: 2/5 × 3/4

= 6/20

= 3/10

5: 2/5 × x = 18

2x = 28 × 5

2x = 140

x = 70

70 - 28

= 42

Step-by-step explanation:

1. 24 girls

2.600

3.300

yan lang alam ko insan

Solve for the variable

9b+4−8b=7

b = ?

Answers

The answer is 3
B+4=7
B=7-4
B=3

State the radius of this circle:
X^2 +Y^2=121

Answers

Answer:

radius = 11

Step-by-step explanation:

The equation of a circle centred at the origin is

x² + y² = r² ( where r is the radius )

x² + y² = 121 ← is the equation of a circle centred at the origin

with r² = 121 , then

r = [tex]\sqrt{121}[/tex] = 11

Mark 4 feet of licorle to show 3/4

on number line​

Answers

I have no way to mark it here to demonstrate what will be 3/4

measurements <2 and <4 are??

Answers

[tex]▪▪▪▪▪▪▪▪▪▪▪▪▪  {\huge\mathfrak{Answer}}▪▪▪▪▪▪▪▪▪▪▪▪▪▪[/tex]

Acording to given figure, The Angles 2 and 4 forms :

Alternative Exterior Angles ~

Jayson started with 200 anger units. Each week he lost 7 anger units. Write an equation that models Jayson's anger after t weeks.

Answers

Answer:

200 - 7t

Step-by-step explanation:

In order to make an equation, you have to figure out what needs to be put into it. Because Jason starts off with 200 anger units, that number will be subtracted by whatever amount he loses or gains per week, which would be 7. Then, in order to model the number of weeks, you would multiply the variable t to 7, so that it represents how many weeks Jason is going to lose 7 anger units. Therefore, our final equation should be:

Anger units = 200 - 7t

Hope this helps :)

How many intervals are there in the hisogram in figure 1.4?

Answers

Answer: 5 to 20 intervals.

Step-by-step explanation:

Option B is the correct answer.

Which of the following are remote interior angles of angle 1? Check all that apply

A. <5

B. <2

C. <3

D. <1

E. <4

F. <6
​

Answers

Answer:

The answer would be 6 and 4.

Step-by-step explanation:

Because when they mean remote interior, they are hinting that the interior angles that are not close to 1. We cannot choose 3 in this situation because it is adjacent to angle 1.

30 points please answer (Must show work) Screenshot attached!!!

Answers

Answer:

1  thats it

Step-by-step explanation:

Answer:

the second, fourth

Step-by-step explanation:

Since they all have the same fraction, but different positive and negatives in each equation we can find out which ones are equal to the original equation by how many negatives each equation has.

The original equation has 2

first option only has 1, so we can eliminate that one

the second option has two, and they are the same equation as the original, only in reverse, so this one will be one of the answers.

the third only has one so we can get rid of that one.

the fourth has 2, even though it has a + it still makes 2/5 negative, so it is one of the answers as well.

and the fifth one is positive, and there are no negatives, so we can get rid of that one.

so the answers would be the second and fourth ones.

x-10<-26
help lololololol

Answers

Hope this will help you!! <3

Answer:

Step-by-step explanation:

1) -90 ≥ 18x

Divide both sides by 18

-90/18 ≥ 18x/18

-5 ≥ x

2)x/3 > -8

Multiply by 3,

3*(x/3) > -8*3

x> -24

3)x - 10 < -26

Add 10 to both sides

x  < -26 +10

x < -16

4) 19 -x ≥ 21

Subtract 19 from both sides,

-x ≥ 21 - 19

-x ≥ 2

Divide both sides by (-1)

x < -2

help i need a place to watch movies during schools

Answers

Answer:

try to use soap2day.to if its not blocked by your school

Answer:

wdym? Netflix?

like do you mean you need a setting to watch them?

- Library

random table or bench

or do you need a site to watch them?

- Netflix ( needs subscription )

- Disney + ( Needs Subscription )

Hope that helps?

solve the system x+2y-5z=10, y+2z=2, z=-1

Answers

Answer:

x=-3,y =4 z=-1

Step-by-step explanation:

x+2y-5z=10

y+2z=2

z=-1

Since z = -1, substitute into the second equation

y + 2(-1)=2

y -2 =2

y = 2+2

y=4

We can substitute into the first equation

x+2(4) -5(-1) =10

x+8+5=10

x+13 = 10

x = 10-13

x=-3

put the boxes in the correct place given equation is first to let you know

Answers

When converted to a household measurement, 9 kilograms is approximately equal to a

what is the quotient of 2x+5/4 ÷ 2x+5/6
a. 1/4
b. 1/2
c. 2/3
d. 3/2

Answers

the answer is D: 3/2

Which is the graph of the following equation?
|x| = 2

Answers

Answer:

A

Step-by-step explanation:

|x|= negative and positive with the lines

Suppose you have a 100 AED of coupons at Dubai Expo 2020. You spend 30 AED per game. Write an equation that models the total amount of money y you spent if you play x games.

Answers

The total amount of money y you spent if you play x games is expressed as y = 1/30x

Given the following

Total amount of AED of coupons at Dubai Expo 2020 = 100 AED

If you spend 30 AED per game, this can be expressed as:

30 AED = 1 game

100 AED = x game

Cross multiply

30 x = 100 * 1

30x = 100

x = 100/30

x = 10/3 games

This shows that 100 AED of coupons is used for 10/3 games

100 AED = 10/3 games

y AED = x games

Cross multiply

100 x = 10/3 y

100xy = 10/3

10 xy = 1/3

30xy = 1

y = 1/30x

Hence the total amount of money y you spent if you play x games is expressed as y = 1/30x

Learn more here: https://brainly.com/question/14107099

PLS HELppppppppppppppp

Answers

Answer: B

Step-by-step explanation:

Oki so I know this becaue I study to much and because if there was an answer saying this : y=6x+3 it would be wrong because it is adding to the constant

So y=6x is proportinal because it is allways constant. I forgot this was an example sorry.

Answer:

B. since x can equal anything, but nine is in front therefore, it can be what you want, so it is B.

Given that f(x)= x^2+4, evaluate f(-2)

Answers

Answer:

f=-x^2/2-2

Step-by-step explanation:

if 126 base n =86 base ten, find the positive value of n​

Answers

Answer:

8

Step-by-step explanation:

Select the correct answer.
One of the factors of the polynomial x2 + 5x + 6x is (x2 + 3x). What is the other factor?
AX-2
B. X+ 2
C. X+ 1
D. X-1

Answers

Answer:

I think it is B it is my guss

x cube + 1 ÷ x squared -x+1

​

Answers

Hey, here it is!!!!

HELPPP ASAPPPPPPP !!!!!!

Answers

Answer:

ok so it would be square root 2

Step-by-step explanation:ok so it would be square root 2

ok so it would be square root 2

ok so it would be square root 2

ok so it would be square root 2

ok so it would be square root 2

ok so it would be square root 2

ok so it would be square root 2

Player I has two coins. One is fair (probability 1 2 of heads and 1 2 tails) and the other is biased with probability 1 3 heads and 2 3 tails. Both players know these probabilities. Player I knows which coin is fair and which is biased. He selects one of the coins and tosses it. The outcome of the toss is announced to II. Then II must guess whether I chose the fair or biased coin. If II is correct there is no payoff. If II is incorrect, she loses 1.

Required:
Draw the game tree. Be sure to indicate the information sets.

Answers

Answer:

Hi please make me brainly

Step-by-step explanation:

please

PLEASE HELP ME WITH THIS QUESTION PLEASE

and show your steps please I really need help with this question please help please

Answers

Answer:

a. 2.2 m

b. 8 m

Step-by-step explanation:

4) a. Sin 32 = x/4

= (sin 32)(4) = x

b. Cos 65 = 4.5/x

x = 4.5/Cos 65

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