16: Find the coordinates of the foci and the vertices, the eccentricity, the length of the latus rectum of the Hyperbola y^2-16x^2=1.

Answers

Answer 1

Answer:

Foci [tex](0,\pm\frac{\sqrt{17}}{4})[/tex]

Vertices:[tex](0,\pm 1)[/tex]

Eccentricity, e=[tex]\frac{\sqrt{17}}{4}[/tex]

Length of latus rectum=[tex]\frac{1}{8}[/tex]

Step-by-step explanation:

We are given that

[tex]y^2-16x^2=1[/tex]

[tex]y^2-\frac{x^2}{(\frac{1}{4})^2}=1[/tex]

The equation of hyperbola is along y-axis because y is positive

Compare the equation with

[tex]y^2/a^2-x^2/b^2=1[/tex] (Along y-axis)

We get

a=1, b=1/4

[tex]a^2+b^2=c^2[/tex]

[tex]1+\frac{1}{16}=c^2[/tex]

[tex]\frac{16+1}{16}=c^2[/tex]

[tex]c^2=\frac{17}{16}[/tex]

[tex]c=\pm \frac{\sqrt{17}}{4}[/tex]

Therefore,

The coordinates of foci=[tex](0,\pm c)=(0,\pm\frac{\sqrt{17}}{4})[/tex]

The coordinated of vertices=[tex](0,\pm a)=(0,\pm 1)[/tex]

Eccentricity, e=c/a

[tex]e=\frac{\frac{\sqrt{17}}{4}}{1}=\frac{\sqrt{17}}{4}[/tex]

Length of latus rectum=[tex]\frac{2b^2}{a}[/tex]

Length of latus rectum=[tex]2\times \frac{1}{16}=\frac{1}{8}[/tex]


Related Questions

help me please I really need it.
Thank you

Answers

Answer:

D

Step-by-step explanation:

Answer:

D is ur answer

Step-by-step explanation:

Bye

what is the answer to 3x + 4y - 2g + s

Answers

there isn't an answer since all the letters are different and you can't add or subtract or do anything to uncommon values. 3x+x = 4x but u can't do 3x +y because they're not in common

Calculate the scale factor for the original triangle and its
larger image. Show your working out.


Answers

Answer:

2

Step-by-step explanation:

8/4=2

have a good day..

Use special right triangles to solve for all the variables. Leave your answers in simplest radical form.

Answers

Answer:

Step-by-step explanation:

x=5[tex]\sqrt{2}[/tex] because it is an isosceles right triangle , as we have and angle of 45 and one of 90

y is the hypothenuse of the triangle

y^2=(5[tex]\sqrt{2}[/tex])^2+(5[tex]\sqrt{2}[/tex])^2=50+50=100

y=10

the larger triangle is 30-60-90

side opposite of 90 degrees is 2y

r=20

side opposite of 60 degrees is y[tex]\sqrt{3}[/tex]

z=10[tex]\sqrt{3}[/tex]

Pablo swims 1 length of a swimming pool. What unit would be best for measuring that length of the pool?

Answers

Answer:

kiloliters

Step-by-step explanation:

The amount of water a family uses in a year is a large amount of water - more than the amount of water in a pool! This means kiloliters would be the best unit of measurement.

Write the equation of the parabola that has the vertex at point (-2, -2) and passes through the point (-1, -1)

Answers

Answer:

y = (x+2)²-2

Step-by-step explanation:

Use the vertex form y = a(x-h)²+k. Plug in the vertex for h and k. Solve for a and you will get 1 for that value. You can check your answers by plugging in both of those points to make sure.

Write the equation of the line in slope-intercept form that passes through the points (-3,3) and (3,-9). ​

Answers

Answer:

m = -2

Step-by-step explanation:

y = -2x - 3

Only for (a) please!

Answers

Answer:

Efx=2300 may be it would help : )

Step-by-step explanation:

To find that u have to :

mass mid value(x) Number..(f) fx

10-29 19 32 608

30-39 9 38 342

40-49 9 64 576

50-59 9 35 315

60-69 9 22 198

70-99 29 9 . 261

Efx=2300

MARKING BRAINLIEST!!

Answers

Answer:

6a and a(2*3) and 2(a+2a)

Step-by-step explanation:

2*3a=6a

Here is a rectangle all measurement are in centimetres the area is 48cm^2 find the value of y

Answers

Answer:

y = 3 cm

Step-by-step explanation:

We'll begin by calculating the value of x. This can be obtained as follow:

2x + 6 = 5x – 9 (opposite side of rectangle are equal)

2x + 6 = 5x – 9

Collect like terms

6 + 9 = 5x – 2x

15 = 3x

Divide both side by 3

x = 15 / 3

x = 5 cm

Next, we shall determine the length of the rectangle. This can be obtained as follow:

L = 2x + 6

x = 5 cm

L = 2(5) + 6

L = 10 + 6

L = 16 cm

Finally, we shall determine the value of y. This can be obtained as follow:

Length (L) = 16 cm

Width (W) = y =?

Area (A) = 48 cm²

A = L × W

48 = 16 × y

Divide both side by 16

y = 48 / 16

y = 3 cm

Una empresa fabrica dos modelos de DVD: el modelo A y el modelo B. Se dispone de 50 kilogramos de caucho y de 80 horas de mano de obra. Para fabricar un DVD del modelo A se utiliza 1 kilogramo de caucho y 1 horas de trabajo, y para fabricar un DVD del modelo B se utiliza 1 kilogramo de caucho y 2 hora de trabajo. Si la venta le genera una utilidad 30 soles por cada modelo A y 40 soles por cada modelo B. ¿Cuántos DVD de cada tipo debe fabricar y vender para que la utilidad sea máxima?

Answers

Answer:

¿Cuántos DVD de cada tipo debe fabricar y vender para que la utilidad sea máxima?

Se debe fabricar y vender 20 DVD del modelo A y 30 DVD del modelo B. La utilidad máxima es de de S/. 1 800

Step-by-step explanation:

x : Número de DVD del modelo A

y : Número de DVD del modelo B.

                               MODELO A MODELO B TOTAL

Cantidad de caucho                  1x 1x                 50 kg.

Horas de mano de obra           1x 2x                 80 horas

U : Utilidad mensual.

La función objetivo, que se debe maximizar, es:

U=30   + 40y

x+ y [tex]\leq 50\\[/tex]  

x + 2y [tex]\leq 80[/tex]

x[tex]\geq 0[/tex]

y[tex]\geq 0[/tex]

Las coordenadas de los vértices de la región factibles son:

A (0, 0) B (50, 0) C (20, 30) D(0, 40)

Entonces, se evalúa la función objetivo en cada punto:

U (0, 0) = 30 (0) + 40 (0) = 0

U (50, 0) = 30 (50) + 40(0) = 1500

U (90, 0) = 30 (20) + 40 (30) = 1800

U (0, 40) = 30 (0) + 40 (40) =1600

Por consiguiente U tiene un valor máximo en C , en donde: x =20 ,  y = 30 .

Se debe fabricar y vender 20 DVD del modelo A y 30 DVD del modelo B. La utilidad máxima es de de S/. 1 800.

 

 30 x  40 y

 

s.a.

 

   x  0 (3)

 

  y  0 (4)

Maderas mayor is watching a car from the ledge of the water tower. The car is directly approaching the water tower. When first noticed, the angle of depression to the car is 58 degrees. When the car stops the angle of depression is 77 degrees. The mayors line of sight is 127 feet above the ground.

Answers

Answer:

50 ft

Step-by-step explanation:

What should be the answer for 3 multiplied by x? If x is 9.

Answers

Answer:

27

Step-by-step explanation:

x = 9

3 x 9 = 27

Simplify the following expressions:

1/4 (24x + 8)
3/5 (10y - 5)
4m + 8p - 5m + 2p
6 ( j - 5) + 2 (3j + 5)
5 ( 3y + 2) - 4 ( y - 1)

Answers

Answer:

6x+2

6y+3

9+10

36+40

19+14

Sorry if this is wrong I recently learned this

Decide if the following statement is valid or invalid.

If I go to the park, then I will play baseball. If I play baseball, I will need a glove. I will go to the park tomorrow, I will need a glove.

Valid or Invalid ?

Answers

well if you play baseball every time you go to the park, then yes it’s valid but in this case it doesn’t plainly say that tomorrow when they go to the park they will play baseball, meaning there’s no need for a glove. i’d say it’s invalid.

Answer:

valid

Step-by-step explanation:

hi could you please tell me the answer to this?

Answers

Answer:

5

Step-by-step explanation:

5

find the length of x in simplest radical form with a rational denominator

Answers

Answer:

           √3

Step-by-step explanation:

[tex]\cos(30^o)=\dfrac{\sqrt3}2[/tex]

From triangle: [tex]\cos(30^o)=\dfrac x2[/tex]

Therefore:

            [tex]\dfrac x2=\dfrac{\sqrt3}{2}\\\\x=\sqrt3[/tex]

It is equals to 3 I think

1.Solve the equation
a - 6 = 13

Answers

Answer:

19

Step-by-step explanation:

Given

a - 6 = 13

a = 13 + 6

a = 19

Hope it will help :)

Find the measure of the missing side of the triangle.

Answers

Answer:

65

Step-by-step explanation:

Using Pythagorean we can say = 33^2 + 56^2 = hypotenus^2

so 1089 + 3136 = 4225

and 4225 rooted = 65

Answer:

65.

You would have to use the Pythagorean theorem in order to find the Hypotenuse (Side that is missing)

Step-by-step explanation:

The equation is:

C = a^2 + b^2 - square root of the answer.

So it would be set up like this.

56^2 = 3136

33^2 = 1089

1089 + 3136 = 4225.

The square root of 4225 is 65.

Thus, 65 is the answer.

Hope this helps!

HELP!! WILL GIVE 100 POINTS

Complete the following statement.

In 2/3 ÷ 4/5 the___ is 2/3

dividend

quotient

divisor

Answers

Answer:

2/3 is quotient.

Step-by-step explanation:

2/3÷4/5=(2×5)/(3×4)=10/12=5/6

Answer:

quotient

Step-by-step explanation:

If it is a divison problem your answer will be a quotient.

h + 6.3 = −6.3 solve for h

Answers

Answer:

0

Step-by-step explanation:

Hi there!

Let think about this...

-6.3-6.3=h

h+6.3=-6.3

negative plus positive is negative...

h=negative number..

6.3+6.3=12.6 add a negative point=-12.6

Final Result: -12.6

Help me plzz so I don’t fail

Answers

Answer:

A

Step-by-step explanation:

(-2,5)

read the X axis and then y axis

5,349 divided by 21????????

Answers

Answer: 254.714285714 or rounded to 255

Step-by-step explanation:

Have a good day:)

Answer:

254.71

Explanation:

5349 / 21 = 254.71

Blue whales have an estimated weight of 3.6 x 104 pounds. James
weighs approximately 1.8 x 102 pounds. How many people who weigh the
same as James would it take to equal the weight of the blue whale?

Answers

Well i may be wrong but I got 2.037037037037037 please correct me if I’m wrong

Explain how to solve for x. 3x - 10 = 2 *
Your answer:

Answers

Answer:

x = 4

Step-by-step explanation:

3x - 10 = 2 | Given

3x = 12 | Add 10 to both sides to isolate 3x

x = 4 | Divide both sides by 3 to get the value of x

Answer:

4

Step-by-step explanation:

3x - 10 = 2

add

3x = 12

divide

x = 4

What is the equation of the line that passes through (4, -1) and (-2, 3)?

Answers

Answer:

3--1/-2-4=4/-6=2/-3

y=-2/3x+b

-2*-2/3=4/3

3-4/3=5/3

y=-2/3x+5/3

Step-by-step explanation:

Answer:

[tex]\displaystyle y=-\frac{2}{3}x+\frac{5}{3}[/tex]

Step-by-step explanation:

We want to find the equation of the line that passes through the two points:

(4, -1) and (-2, 3).

First, we will find the slope of the two points. So:

[tex]\displaystyle m=\frac{3-(-1)}{-2-4}=\frac{4}{-6}=-\frac{2}{3}[/tex]

Now, we will use the point-slope form given by:

[tex]y-y_1=m(x-x_1)[/tex]

Use either point. I'm going to use (4, -1). So, substitute:

[tex]\displaystyle y-(-1)=-\frac{2}{3}(x-(4))[/tex]

Simplify and distribute:

[tex]\displaystyle y+1=-\frac{2}{3}x+\frac{8}{3}[/tex]

Subtract 1 from both sides. Therefore:

[tex]\displaystyle y=-\frac{2}{3}x+\frac{5}{3}[/tex]

THIS IS HRW CAN YOU TRY TO HELP!!

Answers

Answer:

c

Step-by-step explanation:

Step-by-step explanation:

It's answer is

y = 4x - 6

if x = - 1 Then

y = 4 * (- 4 ) - 6 = - 10

if x = 0

y = 4 * 0 - 6 = - 6

if x = 1

y = 4 * 1 - 6 = - 2

if x = 2

y = 4 * 2 - 6 = 2

hope it will help :)❤

HELP ME PLSSSSSS ASAP

Answers

Answer:

the answer is 200 mph because you take and divide the 400 miles by 20 mph

Step-by-step explanation:

solve 3p+2c is greater or equal to 120 and graph the solution

Answers

Answer:

equal to 120

3p+2c is equal to 120 and graph the solution.

3p+2c is equal to 120 because
3 times 20=60
2 times 30 =60
60+60=120
P=20
C=30

Use the FOIL Method to find (x−4)(x+8).

Answers

Answer:

[tex]x^2 +4x - 32[/tex]

Step-by-step explanation:

By FOIL method, [tex](x-4)(x+8) = x \cdot x + x \cdot 8 + -4 \cdot x + -4 \cdot 8 = x^2 +4x - 32.[/tex]

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