Mathematics Middle School

A teacher wants to choose a student at random. The teacher decides to choose the first person to walk through the classroom door at the start of the lesson.
a. Explain why this is not a good method.
b. Suggest a better method.

Answers

Answer 1
A. The method is not a good method because the student that walks through the door first is probably the student who always walks through the door first. This makes the choosing not random and makes it a biased choice.

B. The teacher should pulls sticks with the students names on it, or use a random name generator.
Answer 2

Answer:

It is not a good method because the first person to walk through the door should be rewarded for being on time and it is pretty much  that the first person to walk in is always the first to walk in  

They should have a  volunteer and make them do it step by step for other kids to see or if someone is late  make them do it

Related Questions

Please help this is worth 15 points!

Answers

It should be Non proportional

How did the boundaries of the Mauryan Empire change under Aśoka?

The empire expanded to the south.
The empire expanded to the west.
The empire expanded to the north.
The empire shrank to a smaller size.

Answers

Answer:

a

Step-by-step explanation: On edge 2022

Answer:

a

Step-by-step explanation:

ez edge 2022

Simplify the expression:
5k2+3k2–4k2+k2

Answers

Answer:

5k2

Step-by-step explanation:

5+3=8, 8-4=4, 4+1=5

Answer:

I love algebra anyways

The ans is in the picture with the  steps how i got it

(hope this helps can i plz have brainlist :D hehe)

Step-by-step explanation:

I'LL GIVE BRAINLIEST:



B or C

Answers

Answer:

b

Step-by-step explanation:

is the proper answer

Pls, HELP IF U DONT KNOW THE ANSWER THEN DONT RESPOND, I WILL GIVE BRAINLESS IF CORRECT.

Answers

Answer:

The answer is 0.23

Step-by-step explanation:

Hope this helps.

Pls tell me if Im not correct.

Answer:

Area of Shaded Region ≈ 0.23 cm^2

Step-by-step explanation:

Simple Question.

The diameter of the circle is 0.4 m, so the radius = 0.4/2 = 0.2 m.

The area of the circle = πr^2 = π(0.2)^2 = 0.04π

The area of the rectangle = 0.9*0.4 = 0.36

The area of the shaded region = 0.36 - 0.04π (π => 3.14) = 0.36 - 0.1256 = 0.2344 ≈ 0.23 cm^2

I woukd love it if you could help! Paula made this model to show the sum of two mixed numbers. Write the addition equation shown by the model and solve it.

You can write out the fraction names or use the forward slash (/) on your keyboard to represent the fraction bars.

Answers

3 3/4 + 3 1/2= 7 1/4
The answer will be 7 1/4.

Hello person who is rude

Step-by-step explanation:

**PLS HELP DUE SOON**

The Garden Club is planting fruit trees in their school’s garden. There is one large tree that needs 5 pounds of fertilizer. The rest are newly planted trees that need 1/2 fertilizer each.

A. 25x + 5 ≤ ½
B. ½x + 5 ≤ 25
C. ½x + 25 ≤ 5
D. 5x + ½ ≤ 25

Answers

Not sure but probably b

Not 100% sure but i believe its c

Help please i dont understand
Turn it btw

Answers

Answer:

1 + 3/6

Step-by-step explanation:

the first full thing represents 1 then there are 3 of 1/6 which is 3/6

Will give brainliest!!! Can someone find the equation for this graph, beware, kinda difficult.

Answers

Answer:

2+2+4+4+4+2+2+4+4 and so on

it is a pattern that goes 2,2,4,4,4,4,2,2,4,4,4,4....

a smaller equation would be 2+2+4×3+2+2+4×2 since the graph stops there.

hope this helps! =D

the equation is y = 4x

Pls helppppppppppppppppppppppppp

Answers

Terms: 3n, 5p, 3, n
Coefficients: 3, 4, 1
Constants: 3
Simplified: 4n+5p+n

Answer:Terms: 3n, 5p, 3, n

Coefficients: 3, 5, 1

Constants: 3

Simplified: 4n+5p+n

Step-by-step explanation:

Which year saw the warmest temperatures, on average?

A. 2006
B. 2007
C. they are the same
D. you cannot tell from the graph

Answers

Answer:

A. 2006

Step-by-step explanation:

The blue line is 2006 and goes the highest on the graph, up to 100 degrees.

A. 2006
The graph you’ve provided shows the purple line at 100* during 2006.

Sarah says that 26 ÷ 8 equals 14 ÷ 4 because both have a quotient of 3 and a remainder of 2. Are the division expressions equivalent to each other? Show her mistake using division. Explain your answer.

Answers

Answer:

no 14/4 = 3.5

Step-by-step explanation    Her first mistake was not putting 14/4 into a calculator

She puts 14/4 wrong it would give you 3.5 not 3

Ok. this is a huge life or death for me. ;-; (Not really.)

Answers

Answer:

y = 2, 3, 4

Step-by-step explanation:

y = 2, 3, 4

Hope it helps you in your learning process.

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

When x = 4

[tex] y= \frac{1}{4} \times 4+ 1[/tex]

[tex] y= 1+ 1=2[/tex]

When x = 8

[tex] y= \frac{1}{4} \times 8+ 1[/tex]

[tex] y= 2+ 1=3[/tex]

When x = 12

[tex] y= \frac{1}{4} \times 12+ 1[/tex]

[tex] y= 3+ 1=4[/tex]

Y=n +6 ~utter-1534 hopefully this helped you out

Which expression is not equivalent to
3x – 2?
x + x – 1 – 1 + x
2x + 2 + x
3 – x + 2x – 5 + 2x
4x – 4 – x + 2

Answers

Answer:

2x+2+x

Step-by-step explanation:

Answer:

2x+x+2= 3x PLUS 2 not MINUS 2

Which of the following describes the function shown in the table below?

Answers

Answer:

B i took the test 100%

Step-by-step explanation:

Dan has 4 over 5 cup of ice cream. How many 1 over 8-cup servings are in 4 over 5 cup of ice cream?

Answers

6 and 1 over 2

i did lots of math

Complete the description of how you use the order of operations to simplify expressions with exponents.


Find the value of any expressions (outside of/within) parentheses first. Then evaluate all powers. Then multiply or (subtract/divide) from left to right, and finally add or (divide/subtract) from left to right.

Answers

Find the value of any expressions (within) parentheses first. Then evaluate all powers. Then multiply or (divide) from left to right, and finally add or (subtract) from left to right.

An airport offers two shuttles that run on different schedules.

If both shuttles leave the airport at 4:00 P.M., at what time will they next leave the airport together?

They will both leave the airport together again at______P.M.

Answers

4.00pm would be the answer if they left

Rose’s grandmother is 89 years old. She can knit mittens somewhere between 13 and 16 hours. If she wants to knit 36 mittens for the students at her church, about how long would it take her? for 15 points

Answers

if it takes that long to make one pair, then i’d say maybe 468 hours to make all 36 pairs
Answer : around 487
( not 100%)


Explanation :
16times 36

Which is equal 576
And the grandmother is 89 so u subtract it and got 487

Please help this is worth 15 points!

Answers

Answer:

2.51

Step-by-step explanation:

slope= 4x
y-intercept= 2

answer choices

107

132

73

17

Answers

answer is 73° talk me my answer is correct or not

Answer:

the angle is 73 degrees

Step-by-step explanation:

Find the smallest integer 'n' such that n/2 is a perfect square and 3n is a perfect square and 3n is a perfect cube

Answers

Answer:

4

Step-by-step explanation:

why dividing by 0 is undefined?

Answers

Answer:

In standard math, the articulation has no importance, as there could be no number which, when duplicated by 0, gives a (expecting to be a ≠ 0), thus division by zero is indistinct. Since any number increased by zero will be zero, the articulation 00 is additionally unclear; when it is the type of a breaking point, it is a vague structure.

Step-by-step explanation:

Answer:

In ordinary arithmetic, the expression has no meaning, as there is no number which, when multiplied by 0, gives a (assuming a ≠ 0), and so division by zero is undefined. Since any number multiplied by zero is zero, the expression 0. 0 is also undefined; when it is the form of a limit, it is an indeterminate form.

hope this helps? my hands hurt lol

Step-by-step explanation:

PLS HELP ITS DUE IN LIKE 20 MINS I REALLY NEED HELP WITH IT

Answers

Answer:

Step-by-step explanation:

Which equation is the correct translation of the following statement?
Five less than a number is ten.
OX-5 = 10
10 - X= 5
O 10-5 = x
05 - x= 10

Answers

Answer:

OX-5=10

Step-by-step explanation:

The answer is: OX-5=10

Please help!!!!!!!!!!

Answers

Answer:

6 hours

Step-by-step explanation:

Add up all data values to get the sum

Count the number of values in your data set

Divide the sum by the count

The mean is the same as the average value in a data set.

How would you write out "The quotient of a number decreased by 7 and -2 is -10"

Answers

Answer:

40

Step-by-step explanation:

The quotient of a number and six 7. n. + 4. Seven divided by a number, plus four. A number decreased by forty.

If an object is thrown upward with an initial velocity of 16 ft/s, its height after t seconds is given by h - 16 - 16t^2.
Find the maximum height attained by the object. Show your work.
A) 0 ft
B) -12 it
C) 16 ft
D) 4 ft

Answers

B is the Answerrrrrrrrrrrrrrrr
B!!!!!!!!!!!!!!!!!!!

Please help fill in the blanks, better with explanation but optional

Answers

The scale factor is 3 as the lengths in the bigger triangle when divided by 3 gives the lengths in the smaller triangle

Answer:

The scale factor is 3

Step-by-step explanation:

The scale factor is 3 as the lengths in the bigger triangle when divided by 3 gives the lengths in the smaller triangle

I tried even my parents tried nether got it correct and I don't under stand could I pleas get some help.

Answers

Answer:

Step-by-step explanation:

The volume of a cylinder is the base area times the height.

V=hr^2(pi), and the height is always 8 so

V=(8pi)r^2

V=(8pi)1^2=25.13

V=(8pi)2^2=4(8pi)=100.53

V=(8pi)3^2=9(8pi)=226.19

Answer:

i say it is 226.18

Step-by-step explanation:

i took the quiz

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