Hi,Hope you could help me with the attached question. Thanks!A random sample of 380 married couples found that 298 had two or more personality preferences in common. In another random sample of 574 married couples, it was found that only 36 had no preferences in common. Let p1 be the population proportion of all married couples who have two or more personality preferences in common. Let p2 be the population proportion of all married couples who have no personality preferences in common.

Hi,Hope You Could Help Me With The Attached Question. Thanks!A Random Sample Of 380 Married Couples Found

Answers

Answer 1

We were given that:

For P


Related Questions

You and a friend have each randomly draw a card.

Answers

There are 52 cards in a deck.

There are 12 face cards in the deck, that is 3 face cards per suit.

The probability of getting at least from two draws is given to be:

[tex]P=P(X=1)+P(X=2)[/tex]

Therefore, the probability is calculated using the formula:

[tex]P=\frac{^{12}C_1\times^{40}C_1}{^{52}C_2}+\frac{^{12}C_2}{^{52}C_2}[/tex]

Using the combination formula, we have the solution to be:

[tex]\begin{gathered} \Rightarrow\frac{12\times40}{1326}+\frac{66}{1326}=\frac{480}{1326}+\frac{66}{1326} \\ P=\frac{546}{1326} \\ P=\frac{7}{17} \end{gathered}[/tex]

The LAST OPTION is correct.

Which of the following statements are not true regarding functions?Check all that apply.A. A function is a relation in which each value of the input variable ispaired with at least one value of the output variable.I B. The vertical line test may be used to determine whether afunction is one-to-one.O C. A sequence is a function whose domain is the set of naturalnumbers.D D. The horizontal line test may be used to determine whether afunction is one-to-one.

Answers

Only B is not true, because the vertical line test is to know if a graph is from a function.

I dont know pls help me

Answers

In Close Encounters of a Bear Kind, the statement that represents the author's primary attitude towards John's work is that C. John's work is dangerous.

How to illustrate the information?

According to the author, he stated that people don't usually realize that bears

can be very dangerous.

He further stated that they will reap people apart of they e the chance. The narrator gave an example about how he walked out at night and had to run back home for his dear life. This was why he stated that the job of John whom was a photographer was a dangerous one.

In conclusion, the correct option is C.

Learn more about author in:

brainly.com/question/12851463

#SPJ1

XYZ has coordinates X(2, 3), Y(1, 4), and Z(8, 9). A translation maps X to X′(4, 8). What are the coordinates for Z′? *

Answers

Answer:

Z'(10, 14)

Explanation:

Taking into accoun that the vertex point X(2, 3) is mapped to X'(4, 8), we can say that the translation rule is:

(a, b) ----> (a + 2, b + 5)

Because

X(2, 3) ----> (2 + 2, 3 + 5)

----> X'(4, 8)

So, using this rule, we can find the coordinates for Z' as:

Z(8, 9) ----> (8 + 2, 9 + 5)

----> Z'(10, 14)

Therefore, the answer is Z'(10, 14)

solve the following system of equation graphically on the set of axes below y= x + 5y= -2x -1

Answers

To solve graphically this set of equations, we should first draw both lines and see the value of x at which the lines crosses

Both graphs can be drawn as follows

We can see that both graphs intersect at a negative value of x. With a more accurate graph, we can determine that both lines intersect at x=-2.

So the solution for this system of equation is x=-2.

Explain how the points A(9,-) and 8(9,3) are related. Use vocabulary words
in your explanation.

Answers

Answer: The points (9,-) and (9,3) Both have the same (y) coordinate.

Step-by-step explanation:

Use point-slope form to write the equation of a line that passes through the point (-12,15) with slope −1.

Answers

Answer: y = -1x + 3

Step-by-step explanation:

Point-Slope form: y - y1 = m(x-x1)

Replace the form with the values provided:

y - 15 = -1(x+12)

Once you get this, you need to get y by itself in order to get it in slope intercept form.

Distribute:

y -15 = -1x - 12

Add -15 to the right side:

y = -1x + 3


Mr. Stewart wants to cut a board that is 34 inches long into four pieces that are the same length. How long will each
board be after he cuts them?
08.0 inches
8.2 inches
8.4 inches
O 8.5 inches

Answers

The pieces he cuts would be 8.5 inches

Solve the compound inequality. 2x-4 > 8 or 3x-1 < -10
-3 < x < 6

x > 6 or x < -3

x > 2 or x < -3

x < 6 or x < -3

Answers

The solution to the compound inequality is x > 6 or x < -3

How to solve compound  inequality?

An inequality is a mathematical expression that has <, >, ≤ and ≥.

A compound inequality is an inequality that combines two simple inequalities.

Therefore, let's solve the compound inequality as follows:

2x - 4 > 8 or 3x - 1 < - 10

2x - 4 > 8

add 4 to both sides of the inequality

2x - 4 + 4 > 8 + 4

2x > 12

divide both sides by 2

x > 12 / 2

x > 6

3x - 1 < - 10

add 1 to both sides of the inequality

3x - 1 + 1 < - 10 + 1

3x < - 9

divide both sides by 3

x < -9 / 3

x < -3

Therefore, x > 6 or x < -3

learn more on inequality here: https://brainly.com/question/23012774

#SPJ1

The solution to the compound inequality will be; x > 6 or x < -3

What is inequality?

Inequality is defined as the relation which makes a non-equal comparison between two functions in an problem.

A compound inequality is defined as an inequality that combines two simple inequalities.

Therefore, solve the compound inequality that will be;

2x - 4 > 8 or 3x - 1 < - 10

2x - 4 > 8

Then add 4 to both sides of the inequality so,

2x - 4 + 4 > 8 + 4

2x > 12

Now, divide both sides by 2

x > 12 / 2

x > 6

3x - 1 < - 10

Again, add 1 to both sides;

3x - 1 + 1 < - 10 + 1

3x < - 9

Then divide both sides by 3;

x < -9 / 3

x < -3

Therefore, solution to the compound inequality is; x > 6 or x < -3

learn more on inequality here:

brainly.com/question/23012774

#SPJ1

shelly wants to tile a rectangular floor that measures 132 feet by 150 feet using square tiles that are all of the same size, with no overlap and no squares hanging over the edge. what is the measurement of the largest square tiles she can use?

Answers

The measurement of the largest square tiles she can use is 6 feet.

Finding all common factors between two numbers and choosing the biggest one yields the highest common factor (HCF). For instance, the numbers 8 and 12 share the elements 1, 2, and 4. Four is the greatest common factor.

Steps for calculating HCF:

Step 1: Write each integer as the sum of its prime factors in step one.

Step 2: List the shared factors between the two numbers.

Step 3: The HCF is the sum of all the common prime factors ( use the lower power of each common factor)

Given,

Measurement of the rectangular floor:

length = 150 feet

breadth = 132 feet

The measurement of the largest square can be calculated by finding the HCF of 132 and 150.

132 = 2*2*3*11

150 = 2*3*5*5

So, HCF (132, 150) = 2*3 = 6.

Hence, the measurement of the largest square tiles she can use is 6 feet.

To learn more about HCF, visit https://brainly.com/question/17240111

#SPJ4

Graph the equation after rewriting it in slope-intercept form. 9x+3y=18

Answers

The equation of a line in the slope intercept form is expressed as

y = mx + c

The given equation is

9x + 3y = 18

We would rearrange it so that it takes the form of the slope intercept equation shown above.

We would divide both sides of the equation by 3, we have

9x/3 + 3y/3 = 18/3

3x + y = 6

Subtracting 3x from both sides of the equation, we have

3x - 3x + y = 6 - 3x

y = 6 - 3x

The slope intercept form is

y = - 3x + 6

To plot the graph, we would substitute values of x into the equation to get corresponding y values. These x and y values would be plotted on the x and y coordinates of the graph. We have

For x = - 2, y = 6 - 3(- 2) = 6 + 6 = 12

For x = - 1, y = 6 - 3(-1) = 6 + 3 = 9

For x = 0, y = 6 - 3(0) = 6 - 0 = 6

For x = 1, y = 6 - 3(1) = 6 - 3 = 3

For x = 2, y = 6 - 3(2) = 6 -6 = 0

The graph is shown below

for anyone that knows how to do this i only need help with these two questions

-4x-1=-y
solve for y

-4y+20+3x=0
solve for y

Answers

[tex]-4x-1=-y\\y[/tex]

Flip the equation:

[tex]-y=-4x-1[/tex]

Divide both sides by -1:

[tex]\frac{-y}{-1} =\frac{-4x-1}{-1}[/tex]

[tex]y=4x+1[/tex]

__________________________________________________________

[tex]-4y+20+3x=0\\y[/tex]

Add -3x to both sides of the equation:

[tex]3x-4y+20+-3x=0+-3x\\-4y+20=-3x[/tex]

Add -20 to both sides of the equation:

[tex]-4y+20+-20=-3x+-20\\-4y=-3x-20[/tex]

Divide both sides by -4:

[tex]\frac{-4y}{-4} =\frac{-3x-20}{-4}[/tex]

[tex]y=\frac{3}{4} x+5[/tex]

25 lbs of potatoes cost $100. How much
would 15 lbs cost?

Round the answer to two decimal digit

Answers

The answer is $60 because each lbs of potatoes is worth $4.00 so $4.00 times 15 is 60

What is the value of the expression below when z=3?
10z^2 +7z+4

Answers

The value of the expression [tex]10z^2[/tex]+7z+4 when z = 3 is 115

The expression is

[tex]10z^2[/tex]+7z+4

The expression is defined as the statements that have a minimum of two terms containing numbers or variables , connected by an operator in between. The operator maybe addition, subtraction, division, multiplication etc..

The expression is

[tex]10z^2[/tex]+7z+4

The value of z = 3

Substitute the value of z in the given expression

= [tex]10(3)^2[/tex]+ 7×3 + 4

= 10×9 + 21 + 4

Multiply the terms first

= 90 + 21 + 4

Add them together

= 115

Hence, the value of the expression [tex]10z^2[/tex]+7z+4 when z = 3 is 115

Learn more about expression here

brainly.com/question/1619296

#SPJ1

RS = 8y +4, ST = 5y + 7, and RT = 115.What is the value of y?

Answers

EXPLANATION:

1.The first thing we must do is use a suitable method that allows us to find the value of y for the two equations of the line

2. The correct and most appropriate method is the matching method.

The exercise is as follows:

[tex]\begin{gathered} RS\text{ }=8y+4\text{ } \\ ST=5y\text{ }+7 \\ RS=ST\text{ } \\ 8y+4=5y+7 \\ 8y-5y=7-4 \\ 3y=3 \\ y=\frac{3}{3} \\ \textcolor{#FF7968}{y=1} \\ \text{\textcolor{#FF7968}{the answer is y}}\textcolor{#FF7968}{=1}\text{\textcolor{#FF7968}{ }}\textcolor{#FF7968}{as}\text{\textcolor{#FF7968}{ a whole number or y}}\textcolor{#FF7968}{=\frac{3}{3\text{ }}}\text{\textcolor{#FF7968}{ as a }}\textcolor{#FF7968}{fractional}\text{\textcolor{#FF7968}{ number}} \end{gathered}[/tex]

6) Bill found a pair of jeans that cost $35.00. If he had a 20%-off coupon, how much would the
jeans cost?

Answers

20% of 35 is 7, so you would be getting the jeans for 28, not including tax

Describe the end behavior of the graph of the following polynomial function:

Answers

We will have the following:

From the polynomial we will have that:

*It falls to the left and rises to the right.

This can be seeing as follows:

Can someone help me out (I will give branliest)

Answers

Answer:  Emma > Amelia > Brandon > Celesle > Damian

Step-by-step explanation:

We convert all the fractions to decimals (2 decimals).

Amelia      4.35 lbs

Brandon   [tex]4\frac{1}{3}= \frac{12}{3} +\frac{1}{3} =\frac{13}{3}[/tex] ≈ 4.33 lbs

Celesle     4.2 lbs

Damian    √15 ≈ 3.87 lbs

Emma       [tex]4\frac{2}{3} =\frac{12}{3} +\frac{2}{3} =\frac{14}{3}[/tex] ≈ 4.67 lbs

4.47 lbs > 4.35 lbs > 4.33 lbs > 4.2 lbs > 3.87 lbs

Emma  > Amelia > Brandon > Celesle > Damian

Reflect the figure over the line y = 1. Plot all of the points of the reflected figure. You may click a plotted point to delete it.​

Answers

Answer:

Step-by-step explanation:

6. Create a systems of inequalities to represent the graph below

Answers

System of inequalities

We are given the graph where two lines represent the solution of a system of inequalities.

The solution is the double-shaded region of the graph.

We need to find the equation of the blue line and the red line and then convert them to inequalities.

Let's start with the blue line. We need to find two clear points through which it passes. These are (0,6) and (2,0). Now we write the equation of the line when knowing two points (the point-point form):

[tex]\displaystyle y-y_1=\frac{y_2-y_1}{x_2-x_1}(x-x_1)[/tex][tex]\begin{gathered} \displaystyle y-6=\frac{0-6}{2-0}(x-0)=-3x \\ \text{Adding 6:} \\ y=-3x+6 \end{gathered}[/tex]

For the red line, the points are (0,0) and (2,2):

[tex]\begin{gathered} y-0=\frac{2-0}{2-0}(x-0)=x \\ y=x \end{gathered}[/tex]

Now we have the equations of the lines, we must convert the equation to inequality by inserting one of these symbols instead of the equal sign:

> ≥ < ≤

For the blue line, the equation of the line is:

y = -3x + 6

Testing the origin (0,0):

0 = 0 + 6

0 = 6

To convert this to a true inequality we must replace the = for < or ≤

Since the blue line is solid, the points on the line belong to the solution, thus the first inequality is:

y ≤ -3x + 6

Now for the red line. The equation is

y = x. Let's test the point (2,1)

1 = 2

We must use the sign ≤ to make the expression true, thus the second inequality is:

y ≤ x

Thus, the system of inequalities is:

y ≤ -3x + 6

y ≤ x

hemoglobin determinations were made on sixteen animals exposed to ionizing radiation. the following observations were recorded: 15.6, 14.4, 14.8, 13.8, 16.6, 14.0, 17.4, 17.3, 18.6, 16.2, 15.7, 14.7, 16.4, 13.9, 14.8, 17.5. construct a 95 percent confidence interval for population standard deviation?

Answers

The required values for a 95 percent confidence interval for population standard deviation are CI₈² = [1.1894, 5.221]

                                         CI₈ = [1.0906, 2.2849]

n = 16, Standard Deviation = 1.4764, Var = 2.1796

X²₀.₀₂₅,₁₅ = 6.26, X²₀.₉₇₅,₁₅ = 27.49

CI₈² = [(15ₓ2.1796/27.48),(15ₓ2.1796/6.26)] = [1.1894, 5.221]

CI₈ = [[tex]\sqrt{15*2.1796/27.48} , \sqrt{15*2.1796/6.26}[/tex]] = [1.0906, 2.2849]

To learn more about Standard Deviation click here:

https://brainly.com/question/12402189

#SPJ4

Complete the table and use the results to find the indicated limit.

Answers

Given the function:

[tex]k(x)=\frac{x^3-x-6}{x-2}[/tex]

when x = 1.9

[tex]k(x)=\frac{1.9^3-1.9-6}{1.9-2}=\frac{-1.041}{-0.1}=10.41[/tex]

when x = 1.999

[tex]k(x)=\frac{1.999^3-1.999-6}{1.999-2}=\frac{-0.0109944}{-0.001}=10.994001[/tex]

When x = 2.001

[tex]k(x)=\frac{2.001^3-2.001-6}{2.001-2}=\frac{0.011006}{0.001}=11.006[/tex]

When x = 2.1

[tex]k(x)=\frac{2.1^3-2.1-6}{2.1-2}=\frac{1.161}{0.1}=11.61[/tex]

so, the limit of the function k(x) = 11

The answer is option A. 11

What number is five times the first number. The third number is 100 more than the first number. Of the sound of three numbers is 490, find the numbers

Answers

Answer:

The three numbers are:

4.62,

23.1, and

462.2

Step-by-step explanation:

Let X be the "first number."

B = What number is five times the first number:  5X

C = third number is 100 more than the first number:  100X

The sum of all three is 490:  X + B + C = 490

----

X + B + C = 490

X + 5X + 100X = 490

106X = 490

X = 4.622

Check:

X = 4.622

B = 5X = 23.11

C = 100X = 462.2

Check:

Sum (4.622 + 23.11 + 462.2) = 490

The diameter D of a sphere is 12.4 m. Calculate the sphere's surface area A.
Use the value 3.14 for , and round your answer to the nearest tenth.

Answers

The sphere has a surface area of 482.8064 square meters

How to determine the surface area of the sphere?

From the question, the given parameters are:

Diameter, D = 12.4 meters

π = 3.14

The surface area of the sphere is calculated using the following formula

S = 4π(D/2)²

Substitute the given parameters in the above formula

So, we have

S = 4 * 3.14 * (12.4/2)²

Evaluate the exponent

This is represented as

S = 4 * 3.14 * 38.44

Evaluate the product

This is represented as

S = 482.8064

Hence, the surface area of the sphere is 482.8064 square meters

Read more about surface area at

https://brainly.com/question/16519513

#SPJ1

39+(20.4) can u help me with this answer I don't know how to do it

Answers

You have the following expression:

39 + (-20.4)

In order to simplify the previous expression, you first eliminate the parenthesis. To do that, you take into account that the sign before the parenthesis must multiply the sign inisde. In this case, you have a positive sign + before the parenthesis, and inside you have a minus -. When the parenthesis is eliminated, these signs are multiplied (here you use the multiplication rule for signs). Thus, you have that - x + = - (positive multiplied by negative is equal to negative). And the expression becomes:

39 + (-20.4)

= 39 - 20.4

= 18.6

Hence, the simplified expression is 18.6

Determine the intervals on which the function is increasing, decreasing, and constant.

A) Increasing on (- 5, - 3) and (2, 5) Decreasing on (- 3, 0) Constant on (0, 2) B) Increasing on (- 3, - 1) Decreasing on (- 5, - 2) and (2, 4) Constant on (- 1, 2) C) Increasing on (- 3, 1) ; Decreasing on (- 5, - 3) and (0, 5) ; Constant on (1, 2) D ) Increasing on (- 3, 0) Decreasing on (- 5, - 3) and (2, 5); Constant on (0, 2)

Answers

Answer:

The answer is D

Step-by-step explanation:

Check to see when the graph is increasing and decreasing from left to right.

It is decreasing from x = -5 to x = -3 or (-5,-3) These look like a points but are not. They are intervals.

Then, it increases from x = -3 to x = 0 or (-3,0)

Then, it stays constant from x = 0 to x = 2 or (0,2)

Lastly, it decreases from x - 2 to x = 5 or (2,5)

To summarize, the graph is increasing from (-3,0). Decreasing on (-5,-3) and (2,5). and constant on (0,2)

The only option that fits these conditions is D.

5) Naomi painted 16.5 square feet of a mural at a rate of 2 square feet per hour. Calire painted 7.5 square
feet of the mural at a rate of 4 square feet per hour. If they continue to paint at the same rates, how many
more hours will it take until Naomi and Claire have painted equal areas of the mural?

Answers

Answer: 4.5

Step-by-step explanation:

We need to find the amount of time until Calire paints a total of 9 more square feet.

Since the difference in their rates is 2 square feet per hour, it will take 9/2 = 4.5 more hours.

For each of the following quadrilaterals, select all the properties that must be true.

Answers

Rhombus have right angle all sides are congruent parallelogram have right angle and two pairs of parallel sides
Rectangle four right angle two pair of parallel sides

Answer:

Rhombus:  All sides congruent, two pairs of parallel sides

Parallelogram: Two pairs of parallel lines

Rectangle: 4 right angles, Two pairs of parallel sides

Step-by-step explanation:

A glacier is moving at a rate of 0.3 inches every hour. The table below represents this relationship.

Glacial Movement
Distance Moved (inches)
Time
(hours)
0.3
1
0.6
2
0.9
3
x
4

What value of x completes the table?
1.2
1.5
3.6
13.3

Answers

Answer:

1.2

Step-by-step explanation:

Bella's mother is 5 less than 4 times her
daughter's age. If her mom is 39 years old, how
old Is Bella?

Answers

bella is 11 years old.
Other Questions
I WILL MARK BRAINLIST Whats the correct answer answer asap for brainlist please someone please Bartlett Electronics pays all sales representatives 4% commission on the first $35,000 of their individual sales and 7% commission on their individual sales in excess of $35,000. Assume that John Morgan sold merchandise valued at $73,500 during the month of November. Calculate the following amounts. (a) Commission on sales in the sales base: $ (b) Commission on additional sales: $ (c) Gross pay: a thin, horizontal, 10-cm-diameter copper plate is charged to 3.5 nc. if the electrons are uniformly distributed on the surface, what are the strength and direction of the electric field Which of the following is an example of demonstrative evidence?O GunO FingerprintO Handwritten noteO Model of crime scene Russian president vladimir putin said 12 recent missile strikes across ukraine targeted the countrys. ?. System. Sound travels faster on a cold day than on a warm day. Is this true or false? Malachi is making a fruit smoothie. In addition to a frozen banana, he wants to add one other fruit and one small container of yogurt.If he has four different options for fruit (blueberries, strawberries, peaches, and raspberries) and three different options for yogurt flavors (plain, vanilla, and lemon), how many fruit smoothie combinations are possible?There are possible fruit smoothie combinations. Suppose 57.9 mL of a 0.196 M solution of Na2SO4 reacts with 167 mL of a 0.398 M solution of MgCl2 to produce MgSO4 and NaCl as shown in the balanced reaction.Na2SO4(aq)+MgCl2(aq)MgSO4(s)+2NaCl(aq)Calculate the mass of MgSO4 that can be produced in the given reaction.Only 0.453 g of MgSO4 are isolated after carrying out the reaction. Calculate the percent yield of MgSO4. 1) An elevator starts at the ground floor, where the ground floor is considered floor 0.It travels up 8 floors before going down halfway to the ground. Next, it travels back up 12 more floors before going down 13 floors. What floor is the elevator on now? Las bolsas de plstico contaminan y no son necesarias: ninguna se recicla. Consumiendo menos y mejor, protegemos el medio ambiente. La bolsa de plstico es el producto estrella de nuestra cultura de usar y tirar, que malgasta grandes cantidades de materiales y energa para fabricar productos efmeros de un solo uso, muchas veces superfluos. Las bolsas de plstico se pueden reemplazar por recipientes o sistemas duraderos y ecolgicos (bolsas de tela, de plstico resistente, de papel, carros de compra ). En Espaa utilizamos unas 250 bolsas por habitante por ao. Tanto su fabricacin y distribucin como su tratamiento posterior provocan importantes problemas ambientales. Por todo ello consideramos que es necesaria su desaparicin.Razones para decir que no a las bolsas de plstico:Se fabrican a partir del petrleo, un recurso no renovable, costoso, cada vez ms escaso y responsable de la emisin de gases de efecto invernadero, es decir, del cambio climtico.Su reciclaje no es rentable: cuesta 100 veces ms reciclarlas que producirlas nuevas.La mayora acaba en el mar o quemada en las incineradoras y en los hornos de cemento. Se han encontrado bolsas flotando al norte del Circulo rtico y en lugares remotos del Atlntico Sur.Contaminan durante su fabricacin y su incineracin (dioxinas, cianuro ).Algunas estn impresas con tintas txicas.Tardan entre 150 y 1000 aos en descomponerse.Segn la lectura, cul es el tema principal? El tema principal es _______A. los efectos negativos de fabricar y usar las bolsas de plsticoB. que la mayora de las bolsas son hechas de petrleoC. que es ms barato reciclarlas en lugar de hacer bolsas ecolgicasD. que las personas que fabrican las bolsas de plstico se enferman Please help!4|x+7| < 8 3 h(r) = (r +1)(r+8)1) What are the zeros of the function?Write the smaller r first, and the larger second.smaller r =larger s 2) What is the vertex of the parabola Determine the angle of rotation if an image is the result of a composition of two reflections across perpendicular lines. See attached pic for problem. Only need help with part D Which of the following numbers is divisible by 6?A. 342 543B. 322 222C. 415 642D. 123 456 The complimentary base strands for TGA CAA CGA GGT ACT are The perimeter of a rectangular field is 360 m.If the width of the field is 85 m, what is its length? ANSWER ASAP PLSThe concentration of water is greater outside the cell than inside the cell.What will happen according to the process of osmosis?O Water will be repelled away from the cell, keeping it dry.O Water will surround the cell, keeping it moist.O Water will move into the cell, causing it to swell.O Water will move out of the cell, causing it to shrivel. Damage to the ________ disrupts ones ability to comprehend language, but it leaves ones ability to produce words intact. the heart provides hydrostatic pressure which enables small molecules dissolved in water to passively flow through the capillary walls into surrounding tissues, leaving larger proteins and cells in the bloodstream. this transport mechanism is known as .