Carrie wants to conduct a randomized experiment on 50 articles of her dirty clothing to see if detergent A or detergent B cleans better. Which of the following best describes the method for randomization using slips of paper within this experiment?
A. Label each article of clothing with a number from 1 to 50, and write those numbers on identical slips of paper. Shuffle the slips of paper and choose 25 slips of paper to wash with detergent A and the remaining slips to wash with detergent B.
B. Label each article of clothing with a number from 1 to 50, and write those numbers on identical slips of paper. Shuffle the slips of paper and choose 25 of them. The numbers on those slips will represent the items that will be washed with detergent A and the remaining items will be washed with detergent B.
C. Label each article of clothing with a number from 1 to 50, and write those numbers on identical slips of paper. Carefully place the slips of paper in a stack and choose the top 25 slips of paper. The numbers on those slips will represent the items that will be washed with detergent A and the remaining items will be washed with detergent B.
D. Label each article of clothing with a number from 1 to 50, and write those numbers on different-sized slips of paper. Use large slips for pants, medium-sized slips for shirts, and small slips for shorts. Shuffle the slips of paper and choose 25 slips of paper. The numbers on those slips will represent the items that will be washed with detergent A and the remaining items will be washed with detergent B.
E. Label each article of clothing with a number from 1 to 50, and write those numbers on identical slips of paper. Shuffle the slips of paper and choose 25 of them. The numbers on those slips will represent the items that will be washed with detergent A. Replace those slips and shuffle all 50 slips again and choose 25 slips again. The numbers on those slips will represent the items that will be washed with detergent B.

Answers

Answer 1

Answer:

b

Step-by-step explanation:

Because if it has to be random then you wouldn't know what 25 numbers you were going to pull out.


Related Questions

What is the slope-intercept form of a line that passes through points (2,11) and (4,17)? *

y=3x+5
y=-3x+5
y=-3x-5
y=3x-5

Answers

Answer:y=3x+5

Step-by-step explanation:

11=3(2)+5

17=3(4)+5

Answer:

Y=3x + 5

Step-by-step explanation:

Which of the following equations have no solutions?
Choose all answers that apply:
A
5x +5 = -4x - 5
B
- 4x + 5 = -4x - 4
C
-4x +5 = -4x - 5
D
4x + 5 = -4x + 5

Answers

it should be B and C
B and C don’t have an answer

What is the value of 780 divided by 60?

Answers

Answer:

13

Step-by-step explanation:

Answer:

the answer is 13

Step-by-step explanation:


Sophia's mom gave her 7/8 of a bag of candy. She split the cand
among her 4 best friends. How much of the bag of candy did
each friend get?

Answers

Answer:

Step-by-step explanation:

8

PLEASE HELP I AM BEING TIMED!!

Assume line M and line N are parallel line cut by the transversal line L.
Find the value of X.

Options: X=18.2
X=-0.2
X=1.2
X=2

Answers

Answer:

X=1.2

Step-by-step explanation:

i just did that

Answer:x is 1.2

Step-by-step explanation:

Caclator

A circular coin has circumference 32 pi millimeters. Will the coin fit through a slot that is 35 millimeters long? Explain.

Answers

Answer:

Yes it will

Step-by-step explanation:

A circular coin has circumference 32 pi millimeters. Will the coin fit through a slot that is 35 millimeters long? Explain.

The formula for the circumference of a circle = πD

Where D = Diameter which can also be referred to as the length of the circle

Circumference =32π mm

Hence:

32π = πD

Cancel out the π

D = 32 mm

The diameter of the coin = 32 mm

The length of the slot = 35 mm hence, the coin with a diameter of 32 mm can fit into the slot

8/10
Solve this equation for 2 in terms of y and z:
2x - 3y + 8z = 14
What is the value of x when y= 2 and z= -5?

Answers

Answer:

x=30

Step-by-step explanation:

2x-3y+8z=14

2x-3*2+8*(-5)=14

2x-6-40=14

2x=14+6+40

2x=60

x=60/2

x=30

Solve the equation log 4(x + 20) = 3

Answers

the answer would be x=-19.25

Answer:

if its the question on edg and its 4(x+20)= 3  

x=44

the awnser 44

Step-by-step explanation:

its just 44

Choose true or false for each statement.

Answers

Answer:

a:t

b:f

c:f

d:t

e:f

I think

find the slope: (8,5) and (-9,5)

Answers

Answer:

Use the slope formula to find the slope  m.

 m = 0

Step-by-step explanation:

The slope of the line is zero (0).

Given the following points:

Points on the x-axis = (8, -9)Points on the y-axis = (5, 5)

To find the slope of the line, we would use the following formula;

[tex]Slope. \;m = \frac{Change \; in \; y \;axis}{Change \; in \; x \;axis} \\\\Slope. \;m = \frac{y_2 - y_1}{x_2 - x_1}[/tex]

Substituting the points into the formula, we have;

[tex]Slope. \;m = \frac{5 - 5}{-9 - 8}\\\\Slope. \;m = \frac{0}{-17}\\\\Slope. \;m = \frac{0}{-17}[/tex]

Slope, m = 0

Therefore, the slope of the line is zero (0).

Find more information: https://brainly.com/question/19933259

Finley's pumpkin originaly had a mass of 6.5 kilograms. If after carving the pumpkin the mas decreased by 40% what is the new mass
of the pumpkin?

Answers

Answer:

3.9

Step-by-step explanation:

Ratios and Scale Worksheet #1. What does it mean when a map of a park says its scale is 1 to 50? #2. If a pathway in this same park is 7 inches long on the map, how many inches is it in real life? #3. How many feet will this same pathway be in real life? #4. A model car is built at a scale of 1 to 67. If the model car is 5 inches long, how many inches is the actual car? #5. How many feet will this same car be in real life? #6. A driver is driving at a constant speed and drives 9 miles. It takes her 10 minutes to drive this far. What is her speed in miles per hour? Help me please, thank you.

Answers

Answer:

1. This means that the actual park size is 50 times larger than the size of the park on the map.

2. If a pathway is 7 inches long on the map, it will be 50 times larger in real life;

= 7 * 50

= 350 inches

3. 1 foot is 12 inches so 350 inches will be;

= 350/12

= 29.2 feet

4. The real life length of the car is;

= 5 * 67

= 335 inches

5. The real life length in feet is;

= 335/12

= 27.9 feet

6. Speed = Distance / time

The time should be converted to hours;

= 10/60 minutes

= 1/6

Speed = 9 / (1/6)

= 54 miles per hour

= 54 mph

-Find the sum or difference
1. (5b-9) + (b+8)
2.(3m+5) - (6-5m)
3.(1-9z) + 3(z-2)
4.(7g-6) - (-3n-4)

Answers

1. 6b-1
2.8m-1
3.-5-6z
4.7g-2+3n

Plz help!!! I’ll give 10 points to the first person to give me a correct answer...I need to get my grade up before the end of the semester

Answers

Answer:

A= 30

B= 60

C= 90

Step-by-step explanation:

A is already shown.

B has a right angle making it 90 degrees.

A triangle is 180 degrees 30+90= 120

180-120=60

You spend $40 on 5 pounds of concrete. How much would it cost for 7 pounds of concrete

Answers

Answer:$8

Step-by-step explanation:

Eeeh I looked it up but I’m pretty sure u supposed to divide 40 and 5

answer: $56

divide 40 by 5=8
multiply 7 and 8=56

what is 90 percent of 20

Answers

Answer:

18

Step-by-step explanation:

What number is 90% of 20?

18

What is 90 percent (calculated percentage %) of number 20? Answer: 18.

i'll mark you has brainliest​

Answers

Answer:

x-1=y

Step-by-step explanation:

Is this what you need?

Part 2

Evaluate the expression for the given value of x.

−8x + 7 for x = −

Evaluate the expression for the given value of x.

3.5x − 1.5 for x = 9

Evaluate the expression for the given value of x.

0.2x + 7.7 for x = −2

Evaluate the expression for the given value of x.


3
4
x − 9 for x = 12

Answers

1) x = negative what number?

2) 30

3) 7.3

4) 0

If a figure has been dilated by a scale factor of one third, which transformation could be used to prove the figures are similar using the AA similarity postulate? A translation because it can map one angle onto another since dilations preserve angle measures of triangles. A rotation because it can change the orientation of a figure since dilations do not preserve orientation. A dilation because it can map one side onto another since dilations preserve side length of triangles. A reflection because it can change the orientation of a figure since dilations do not preserve orientation.

Answers

Answer:

A translation can map one angle onto another since dilations preserve angle measures of triangles.

Step-by-step explanation:

A translation transformation could be used to prove the figures are similar using the AA similarity postulate because it can map one angle onto another since dilations preserve angle measures of triangles.

What is translation?

In a translation transformation, every point of the figure is moved by the same quantity. This means that the angles and lengths of the figure remain the same. The only thing that changes are the points on which it lies.

The transformation that could be used to prove the figures are similar using the AA similarity postulate is given below:

Translation transformation is the correct answer. This is because, in translation transformation, only the cartesian coordinates of the figure change. Nothing happens to the angles and lengths of the figure.

In the other given transformations, the orientations of the figures are not preserved and this makes it harder to prove using the AA similarity postulate.

Therefore, we have found that a translation transformation could be used to prove the figures are similar using the AA similarity postulate because it can map one angle onto another since dilations preserve angle measures of triangles.

Learn more about translation transformation here: https://brainly.com/question/12861087

#SPJ2

Evaluate each function for x = 4
g(x) = -2x - 3

Answers

Answer:

g(4) = -11

General Formulas and Concepts:

Pre-Alg

Order of Operations: BPEMDAS

Step-by-step explanation:

Step 1: Define

g(x) = -2x - 3

x = 4

Step 2: Evaluate

Substitute:                    g(4) = -2(4) - 3Multiply:                        g(4) = -8 - 3Subtract:                       g(4) = -11
I believe the answer is x =3

Need help with questions 1 & 2 ASAP!!!

Answers

Answer:

answer attached

Step-by-step explanation:

wants more words

Cherries are $2.00/ pound what is the constant of proportionality

Answers

Answer:

$2 price per pound

2 is the constant of proportionality

Step-by-step explanation:

Price of Cherries = $2 per pound

what is the constant of proportionality

If y = total cost of buying x pounds of Cherries at $2 per pound

The equation below represent the situation

y = $2 * x

y = 2x

The constant of proportionality is 2

That is, the $2 price per pound

Write the expression 3x12 + 20x6 + 6 in quadratic form. ​

Answers

Answer:

=3x to the power of 12+20x to the power of 6+6

Step-by-step explanation:

simplify step-by-step-

[tex]3x1x^{2} 2+2x^{2} 0x6+6x^{2} x12[/tex]

There are no like terms so that means that the answer is

=3x to the power of 12+20x to the power of 6+6

brainiliest if u answer both
1.Bella brought stickers to give to 12 of her friends. Each friend received 4 stickers. How many stickers did she bring to school?
2.ierra walks her dog Pepper twice a day. Her evening walk is two and a half times as far as her morning walk. At the end of the week she tells her mom,
I walked Pepper for 30 miles this week!
How long is her morning walk if there are 7 days in the week?

Answers

Answer:

1. 48 stickers 2. 1.2 miles

Step-by-step explanation:

1. 12x4=48 stickers. 2. If we let w denote the length of the morning walk, Sierra walks w+2.5w or 3.5w miles each day. At the end of the week she has walked 7 times as far and she said that this was 30 miles. Solving the equation

24.5w=30,

we have w=30/24.5≈1.2 miles. Therefore the distance of Sierra's morning walk is about 1.2 miles

Solution: Using a diagram

We can illustrate the solution to this problem with a tape diagram. If we let one box be the morning walk, then the evening walk is 2.5 boxes. The total distance Sierra walks in one day is represented by 3.5 boxes. Instead of talking about the number of boxes, we can choose a variable to represent the value or length of each box, say w.

Since Sierra walks every day of the week, the total distance walked is 7 times as long. Therefore, we have the total distance walked during the week is 7(3.5w)=24.5w. We know that Sierra walks a total distance of 30 miles, so we have 24.5w=30 miles. We can use another diagram to illustrate the total distance with 24.5 boxes.

Dividing both sides of the equation 24.5w=30 by 24.5 allows us to find w, and we have

w=30/24.5≈1.2.

Therefore, Sierra's morning walk is about 1.2 miles.

HELPPPP ILL GIVE YOU 10 POINTSSS!!!

Answers

Answer:

C. Reflection line

Step-by-step explanation:

Answer:

Im thinking its reflection line

Step-by-step explanation:

Please help me out!​

Answers

Answer:

the answer is a because it's the best one you could pick

Answer:

B

Step-by-step explanation:

The sqaure root of 140 is 11.8321595662 and you would round to the nearest tenth and get 11.8

Below are different ways students tried to start this problem. Which is correct?

(- 10) * (½) * (- 8)


A) (½) * - 8 = - ( - 8/16 )

B) (-10) * (½) = 5

C) -10 * (- 8) = 80

D) -8 * 2 = - 16

Answers

Answer:

C) -10 * (- 8) = 80

Step-by-step explanation:

(- 10) * (½) * (- 8)

Checking all the options

A) (½) * - 8 = - ( - 8/16 )

1/2 * - 8

= -8/2

= -4

(½) * - 8 = -4

(½) * - 8 = - ( - 8/16 ) Wrong

B) (-10) * (½) = 5

-10 * 1/2

= -10/2

= -5

(-10) * (½) = -5

(-10) * (½) = 5 Wrong

C) -10 * (- 8) = 80

-10 * (- 8)

= -10 × - 8

= + 80

-10 * (- 8) = 80 Correct

D) -8 * 2 = - 16

-8 * 2

= -16 correct but we don't have 2 in the expression so, it is wrong

The correct way to start solving the problem is C) -10 * (- 8) = 80

(- 10) * (½) * (- 8)

-10 * (- 8) = 80

80 * 1/2 = 80 / 2

= 40

Lines a and d are
A. non-coplanar.
B. parallel.
C. perpendicular.
D. skew.

Answers

c. perpendicular
they make right angles so they would be perpendicular
The answer would be C

help pls fhakahdksjhshdksj

Answers

It is (a) -5/3
Slope could also mean gradient, so the gradient of a line is always the number in front of x in the equation y=Mx+c ... Hope it was helpful:)
the slope of the line would be a) -5/3

Use a property of equality to solve this equation:

4.5x = 18

x=

Answers

Answer:

x=4

Step-by-step explanation:

4.5x = 18

<=> x= 18 / 4.5

<=>x = 4

Answer:

The person above is correct c: it is x=4

GoodJob! :D

Step-by-step explanation:

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