The lifespans of zebras in a particular zoo are normally distributed. The average zebra lives
20.5 point, 5 years; the standard deviation is
3.9
3.93, point, 9 years.
Use the empirical rule
(
68

95

99.7
%
)
(68−95−99.7%)left parenthesis, 68, minus, 95, minus, 99, point, 7, percent, right parenthesis to estimate the probability of a zebra living less than
32.2
32.232, point, 2 years.

Answers

Answer 1

Answer:

3

Step-by-step explanation:


Related Questions

If the x- intercept is 2 and the y- intercept is -5 and the slope is 1/3. Write in equation in slope intercept form and standard form.

Answers

Answer:

The equation in slope-intercept form is

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

The equation in the standard form will be:

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

Step-by-step explanation:

The x-intercept is obtained when we set the value y=0

As the x-intercept is 2, therefore the point representing

the x-intercept will be: (2, 0)

The y-intercept is obtained when we set the value x=0

As the y-intercept is -5, therefore the point representing

the y-intercept will be: (0, -5)

So we get the two points

(2, 0)

(0, -5)

Finding the slope between (2, 0) and (0, -5)

[tex]\left(x_1,\:y_1\right)=\left(2,\:0\right),\:\left(x_2,\:y_2\right)=\left(0,\:-5\right)[/tex]

[tex]\mathrm{Slope}=\frac{y_2-y_1}{x_2-x_1}[/tex]

[tex]m=\frac{-5-0}{0-2}[/tex]

[tex]m=\frac{5}{2}[/tex]

Using the point-slope form of the line equation

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

Here m is the slope

substituting the values m = 5/2 and the point (2, 0)

[tex]y-0=\frac{5}{2}\left(x-2\right)[/tex]

so writing the equation in slope-intercept form

As we know that the slope-intercept form is

[tex]y=mx+b[/tex]

here

m = gradient or slop b = y-intercept

so

[tex]y=\frac{5}{2}\left(x-2\right)[/tex]

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

Hence, the equation in slope-intercept form is

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

Writing the equation in the standard form form

As we know that the equation in the standard form is

[tex]Ax+By=C[/tex]

where x and y are variables and A, B and C are constants

As we already know the equation in slope-intercept form

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

so the equation in the standard form will be:

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

Please help me :) I need #32

Answers

Answer:

1/5

Step-by-step explanation:

slope m = (y₂ - y₁) / (x₂ - x₁)

              = (-3 - (-1)) / (-7 - 3)

              = -2 / -10

              = 1/5

** pay attention to your minus signs

A navigator on a boat measures the angle between the course of the boat and the lighthouse on shore to be 70 degrees. After the boat has traveled 3000 m, the navigator measure the angle to be 100 degrees. How far, to the nearest metre, was the boat from the lighthouse at the time of the first sighting?

Answers

hi pls where can I get physics questions on checking the correctness of an equation using dimensional analysis

what is 1,296 divided by 22

Answers

Answer:

58.9090 rounded to nearest whole it's 59

Step-by-step explanation:

Hope this helps ya!

If you need work tell me.

help me please thanks ​

Answers

It’s the last one, you can check by plugging in the numbers (x,y) and if it’s the same as the number after the equals sign it’s that one

Solve using Elimination

3x+y=-9
y=5x+7

Answers

Answer

x=-2 and y=-3

Step-by-step explanation:

Step: Solvey=5x+7for y:

Step: Substitute5x+7 for y in 3x+y=−9:

3x+y=−9

3x+5x+7=−9

8x+7=−9(Simplify both sides of the equation)

8x+7+−7=−9+−7(Add -7 to both sides)

8x=−16

8x/8=−16/8

(Divide both sides by 8)

x=−2

Step: Substitute−2 for x in y=5x+7:

y=5x+7

y=(5)(−2)+7

y=−3(Simplify both sides of the equation)

Jade borrowed $5,000 from a bank to buy a car. She will pay back the loan in 3 years with simple interest, at an interest rate of 18% per year. What is the total amount that she will pay after 3 years?


pls i will give brainly

Answers

Answer:

$2,700

Step-by-step explanation:

Step-by-step explanation:

borrowed amount -$5000

interest rates -18% per year(3 years interval)

18/100 × 5000/1 =

90000/100=900

900×3=

2700

I.e in 3yrs she will pay

5000+2700=$7700

lines A and B are parallel what is the measurement of angle b?​

Answers

Answer:

79

Step-by-step explanation:

Since the two lines are parralel, then the angles should be the same.

Answer:

79 degrees for sure

Step-by-step explanation:

this is because im pretty sure its right.

both angles look same to me trust me

pls mark braineslt if im right

f) 16 - p = 12
g) 18 - 2p = 6
h)p2+ 4 = 9
i)p4- 3 = 1
**MUST SHOW YOUR WORK**

Answers

f) 16 - p = 12 minus 12
4 - p = 0 plus p
p = 4
g) 18 - 2p = 6 divide by -2
-9 + p = -3 plus 9
p = 6
h) p x 2 + 4 = 9 divided by 2
p + 2 = 4.5 minus 2
p = 2.5
i) p x 4 - 3 = 1 plus 3
p x 4 = 4 divided by 4
p = 1

3/4 (x - 3) - 1/2 2/3 whats the value of x​

Answers

3/4. x - 3/4 . (-3) -1/2 . 2/3 = 0

3/4x - 2.25 -3/4 = 0

3/4x -2.25 = 3/4

x - 2.25 = (3/4)/(3/4) or just 1

x = 2.25 + 1

x = 3.25

Answer:

probably wrong

Step-by-step explanation:

3/4 (x - 3) - 1/2 2/3 [all x4]

12/4 . 4(x-3) -4/2. 8/3

3. 4x-12 -2 . 8/3 [all x3]

9. 12x-36 -6 . 8

108x - 36 -48

108x = 36 + 48

108x = 84

x = 84/108

x = 7/9

a small table is 2 feet by 3 feet a large table is twice as long and rwice as wide as the small table. Whats the area of the large in square feet

Answers

Answer:

The area of larger table is 24 square feet.

Step-by-step explanation:

Given are the length and width of small table

[tex]l_s = 2\ ft\\w_s = 3\ ft[/tex]

The area of a rectangular table is calculated by multiplying the length and width. It is also given that the length and width of the larger table is double the length and width of small table

So the length and width of larger table will be:

[tex]l_l = 2*2 = 4\ feet\\w_l = 3*2 = 6\ feet[/tex]

The area of larger table will be:

[tex]A_l = l_l*w_l\\= 4 * 6\\=24\ ft^2[/tex]

Hence,

The area of larger table is 24 square feet.

Dos padres de familia deseaban saber cuáles son los costos de los uniformes escolares que compraron a sus hijos, ya que el primero padre de familia realizó la siguiente compra: 2 pantalones y 2 playeras pagando por ello $820, el segundo padre de familia realizó la siguiente compra, 1 pantalón y 3 playeras pagando por ello $490. Resuelve los siguente cuestionamientos ¿Los padre de familia pagaron al mismo precio cada pantalón y playera? ¿Existe diferencia entre x e y en la ecuación 1 y con respecto a la ecuación 2?

Answers

Answer:

a) ¿Pagaron los padres el mismo precio por cada pantalón y camisa?

Sí, los padres pagaron la misma cantidad por cada pantalón y camisa porque,

1 camisa = $ 40

1 pantalón = $ 370

b) ¿Hay alguna diferencia entre xey en la ecuación 1 y con respecto a la ecuación 2?

Sí, hay una diferencia

Step-by-step explanation:

Dos padres querían saber el costo de los uniformes escolares que compraban para sus hijos, ya que

Representemos pantalones = p

camisas = s

Derivamos las 2 ecuaciones

El primer padre hizo la siguiente compra: 2 pantalones y 2 camisas pagando $ 820 por ella

2p + 2s = 820 ........ Ecuación 1

El segundo padre hizo la siguiente compra, 1 pantalón y 3 camisas pagando $ 490.

p + 3s = 490 ....... Ecuación 2

p = 490 - 3 s

Resolvamos el precio de cada pantalón y camisa.

Nosotros sustituimos

2p + 2s = 820

2 (490 - 3 s) + 2 s = 820

980 - 6s + 2s = 820

980 - 820 = 6 segundos - 2 segundos

160 = 4 s

s = 160/4

s = $ 40

Por lo tanto, el costo de cada camisa = $ 40

El costo de los pantalones =

p = 490 - 3 s

p = 490 - 3 (40)

p = 490 - 120

p = $ 370

El costo de cada pantalón = $ 370

Resuelve las siguientes preguntas.

a) ¿Pagaron los padres el mismo precio por cada pantalón y camisa?

Sí, los padres pagaron la misma cantidad por cada pantalón y camisa porque,

1 camisa = $ 40

1 pantalón = $ 370

b) ¿Hay alguna diferencia entre xey en la ecuación 1 y con respecto a la ecuación 2?

Sí, hay una diferencia

Planteando y resolviendo un sistema de ecuaciones, veremos que cada playera cuesta $40 y cada pantalon cuesta $370.

Definamos:

x = precio de pantalonesy = precio de playeras.

Por la información dada, tenemos que:

2*x + 2*y = $820

1*x + 3*y = $490

Primero respondamos las preguntas:

Notar que ambas preguntas basicamente preguntan la misma cosa:

¿Existe diferencia entre x e y en la ecuación 1 y con respecto a la ecuación 2?

Es realmente imposible saber la respuesta, pero debemos asumir que no, dado que si x e y representan diferentes cosas en cada ecuación, entonces las variables no estan definidas, y el problema es imposible de resolver.

Así que asumimos que los precios son los mismos.

con esto en mente, podemos resolver el sistema:

2*x + 2*y = $820

1*x + 3*y = $490

Primero, aislamos una variable en una ecuación, en este caso voy a aislar x en la segunda:

x = $490 - 3*y

Reemplazamos eso en la primera:

2*($490 - 3*y) + 2*y = $820

$980 - 4*y = $820

$980 - $820 = 4*y

$160/4 = y  = $40

Es decir, el precio de cada playera es $40.

Mientras que:

x = $490 - 3*$40 = $370

Cada pantalon cuesta $370

Si quieres aprender más, puedes leer:

https://brainly.com/question/17174746

guys please help!!!! i NEED to get these right to pass!!!! I WILL GIVE THE BRAINLIEST!!!!

Answers

Answer:

Answer in order, 12,14, (4,3), x2, 4, 12, 3

Step-by-step explanation:

PLEASE MARK BRAINLIEST

PLEASE HELP THIS WAS DUE LAST WEEK!!!!!!!!!!!!!

Zach and Josh see a drawing of a quadrilateral FOUR, F(2, 2) O(5, -2) U(9, 1) and R(6, 5). Zach says the drawing is a rhombus, but not a square. Josh says the figure is a square. Who is correct? Give an explanation or work that supports your answer.

Answers

Answer:

Zack is correct

Step-by-step explanation:

when we plot out all the points we see that not all sides are the same length, which is techinally defines a square. Because of the different sides lengths we know it is a rhombus.

Josh was correct as the figure is Square.

What is Distance Formula?

In a Cartesian plane there are two points P(a, b) and Q(c, d) then the distance between two points

PQ = √(c- a)² + (d- b)²

We have the coordinates F(2, 2) O(5, -2) U(9, 1) and R(6, 5).

Now using Distance Formula

FO = √(-2 - 2)² + (5- 2)² = √16 + 9 = √25 = 5 unit

OU = √(1 + 2)² + (9-5)² = √9 + 16 = √25 =5  unit

UR = 5 unit

RF = 5 unit

and, FU = √(1 -2)² + (9- 2)² = √1 + 49 = √50 = 5√2

OR = √(5+2)² + (6-5)² = √49 +1 = 5√2

So, the given figure is square because the length of Diagonal are equal.

Learn more about Distance formula here:

https://brainly.com/question/25841655

#SPJ3

What value of makes the equation 0.25(10x-3)= 1.5(x+2) - 0.75 true?

A. x = 3
B. x= 4
C. x= 3.75
D. x= 4.25

Answers

Answer:

3.75

Step-by-step explanation:

2.5x-.75=1.5x+3

x=3.75

A new cookbook is becoming popular. The local bookstore ordered 4 copies in October, 6
copies in November, 9 copies in December, and 13 copies in January. If this pattern
continues, how many copies will the bookstore order in February?

Answers

Answer:

18 book copies

Step-by-step explanation:

As you can see, there is a pattern where you add the next number after x. To find where to start, let's subtract the numbers we were given:

6 - 4 = 2

9 - 6 = 3

13 -9 = 4

So our next number is to add 5 to 13: 5 + 13 = 18, so in February the bookstore will order 18 books.

I hope this helped, please mark Brainliest, thank you!

WILL GIVE BRAINIEST IF RIGHT
(AMC8, 1994) Each of the three large squares shown below is the same size. Segments that intersect the sides of the squares intersect at midpoints of the sides. How do the areas of the shaded regions compare?

A. The shaded areas in all three are equal.
B. Only the shaded areas I and II are equal.
C. Only the shaded areas of I and III are equal.
D. Only the shaded areas of II and III are equal.
E. The shaded areas of I, II and III are all different.

Answers

Answer:

i dont ill tell u when im ready

Step-by-step explanation:

A. The shaded area in all three are equal

PLZ HELP !!!!!!!!!!!!!!!!!!!!!!

Answers

c lol add the 5 and then you get 1 and yea it’s greater

Answer:

The last one

Step-by-step explanation:

We need to keep the variable on one side of the inequality

y-5 is greater than or equal to -4

+5                                              +5

y is greater than or equal to 1

So the last one is correct

An earthworm times 2 cm into the ground each day the earth worm tunnels at about the same place every day how many days will it take the earthworm to tunnel 14 cm

Answers

Answer:

7 days

Step-by-step explanation:

Given that:

Distance tunneled into the ground each day = 2cm

The rate is the same everyday ;

Hence, to. Tunnel 14cm into the ground , it will take the earthworm;

1 day = 2cm

x days = 14cm

Cross multiply :

2x = 14

x = 14 /2

x = 7

Hence, it will take 7 days for the earthworm to tunnel 14cm

How would i do this??:: Some kinds of fruit juice are only 10% juice. Other brands are 40% juice how much of each kind of juice should be mixed together to form 5 gallons of punch which is 25% juice?

Answers

Answer:

You should mix

2.5 gallons of the first juice with

2.5 gallons of the second juice

Step-by-step explanation:

Step one

Let the first kind of juice be x

Let the second be y

Given x contain 10% juice

and y contains 40% juice

So for the percentage constituent concentration of each the expression is

0.1x+ 0.4y=0.25(5)

0.1x+0.4y=1.25—----------------1

Step two

Also for the volume of the mixture, we are working with 5 gallons hence the expression

x+y=5-------------------------------2

The system of equation for the situation is

0.1x+0.4y=1.25------1

x+y=5-------------------2

From equation 2

x=5-y

Put x=5-y in the equation

0.1(5-y) +0.4y=1.25------1

0.5-0.1y+0.4y=1.25

0.3y=1.25-0.5

0.3y=0.75

Dividing both sides by 0. 3

y=0.75/0.3

y=2.5

x=5-y

x=5-2.5

x=2.5

The mixture should consist of

2.5 gallons of the first juice with

2.5 gallons of the second juice

help me plz with algebra!!!

Answers

Answer:

Y= -12

Step-by-step explanation:

15 - 3k = 10(k-5)
Can someone please answer this

Answers

Answer:

k = 5

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDASEquality Properties

Step-by-step explanation:

Step 1: Define equation

15 - 3k = 10(k - 5)

Step 2: Solve for k

Distribute 10:                              15 - 3k = 10k - 50Add 3k to both sides:                15 = 13k - 50Add 50 to both sides:                65 = 13kDivide 13 on both sides:            5 = kRewrite:                                       k = 5

Step 3: Check

Plug in k into the original equation to verify it's a solution.

Substitute in k:                    15 - 3(5) = 10(5 - 5)Subtract:                              15 - 3(5) = 10(0)Multiply:                               15 - 15 = 0Subtract:                              0 = 0

Here we see that 0 does indeed equal 0.

∴ k = 5 is a solution of the equation.

Answer:

k=5

Step-by-step explanation:

1. Apply distributive property: 15-3k=10k-50

2. Bring all variables to one side: 15-3k=10k-50

+3k +3k

15=13k-50

3. Isolate K by bring the term in it's way to the other side: 15=13k-50

+50. +50

65=13k

4. Isole your variable by divide by 13: 65=13k

65/13 13/13

5=k

What is the mapping notation that will transform triangle ABC to triangle A'B'C'?

IF ANYBODY HAS ANSWERS TO THE TEST IM WILLING TO CASH APP

Answers

Answer:

Down 5 and left 3.

Step-by-step explanation:

Answer:

So it goes-8 for x and -5 for y aka to the left by 8 and down by 5

Step-by-step explanation:

1. The following image shows a perspective view of one story building what perspective is the image you seen what do points A and B represent explain why
2. The following shows the image of the same building from a different perspective what perspective does a drawing show explain why

Answers

Answer:

1. Two point perspective view

The points A and B represents vanishing points where the sets of parallel lines representing the edges of the building converges

2. One point perspective view

The view shows the drawing of the building by lines that are parallel to the line of sight of viewer that converges to a (vanishing) point

Step-by-step explanation:

Find the area of the triangle.

Answers

Answer:

1325 yards squared

Step-by-step explanation:

As a reminder, the area of any triangle is the height times the width times 1/2. Therefore, the area is:

50*53*1/2

=25*53

=1325 yards squared

Answer:

The answer is 1325.

Step-by-step explanation:

1825-500=1325

how to write this numbers in word 76.68​

Answers

Answer:

seventy-six and sixty-eight hundreths

Step-by-step explanation:

Answer:

seventy six point sixty eight

Step-by-step explanation:

Tbh it depends on the person, but this is how I would say it out loud.

sixteen juice packs for 12 dollars. How many packs can you buy for $6?

Answers

Answer:

2

Step-by-step explanation:

Answer:

you can buy 6

Step-by-step explanation:

A plumber charges a base fee of $ 60, and then each hour of work costs $ 15. Yesterday Joe hired the plumber to fix his sink, at a total cost of $ 240. How many hours did the plumber work 3.75 hours 4 hours 12 hours 16 hours

Answers

Answer:

12 hours

Step-by-step explanation:

Step one:

given data

base fee= $60

charge per hour= $15

let the number of hours the plumber work be x

the linear function for the charge is the equation of line.

that is y=mx+c

Step two:

given that y=$240

240=15x+60

240-60=15x

180=15x

divide both sides by 15 we have

x=180/15

x=12

The number of hours is 12

what are the steps to solve -8(p+2)+p=4(p+3)+5

Answers

Answer:

p = -3

Step-by-step explanation:

The base angle of an isosceles triangle measures 54°. What is the measure of its vertex angle? 27° 36° 54° 72°

Answers

Answer:72

Step-by-step explanation:

Answer:

The answer is D) 72

Step-by-step explanation:

I got the questions right on edge 2020. good luck everyone. please rate the question.

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