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vaieri [72.5K]
3 years ago
10

Determine whether each sample may be biased. Explain.

Mathematics
1 answer:
34kurt3 years ago
5 0

Answer:

5: yes he could easily chose bigger looking families to get the result he wants

6: no he has isn't choosing people and has no idea the answers presumibly

7: no it's not something that they could choose or know what is going to happen, therefore or can't be biased.

I'm not sure if I did it right but I think that's what it's asking sorry if I'm wrong

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Stephanie has 60 tickets to the carnival.She used 3/4 of her 60 tickets to play games.Then she used 1/5 of her remaining tickets
Lera25 [3.4K]

Answer:

<h2>She gave her brother 6 tickets</h2>

Step-by-step explanation:

This problem is on fractional numbers.

given that she has 60 tickets

1.She used 3/4 of her tickets to play game

=(3/4)*60

=180/4

=45

She is left with (60-45)= 15 tickets

2. She used 1/5 of her remaining tickets for rides

    =(1/5)*15

   =15/5

   =3

She is left with (15-3)= 12 tickets

3. She gave half of her tickets to her brother.

  = (1/2)*12

  =12/2

 = 6

She gave her brother 6 tickets

3 0
3 years ago
Write a single transformation that maps ABC onto A' B' C'
blsea [12.9K]

9514 1404 393

Answer:

  Either of ...

  • (x, y) ⇒ (-x, -y)
  • Rotation 180° about the origin

Step-by-step explanation:

There are at least two ways to express the transformation that maps each coordinate to its opposite.

  1. reflection across the origin: (x, y) ⇒ (-x,-y)

  2. rotation 180° (either direction) about the origin.

Take your pick.

4 0
3 years ago
Ahmose drank 35% of a 400mL container of orange juice. Tutankhamun drank 45% of a 350mL container of orange juice. Who drank mor
OlgaM077 [116]

Answer:

Tutankhamun

Step-by-step explanation:

7 0
3 years ago
In △ABC, point D∈ AB with AD:DB=5:3, point E∈ BC so that BE:EC=1:4. If AABC=40 in2, find AADC, ABDC, and ACDE.
DIA [1.3K]

Answer: Using the proportions between the segments, the area of the triangles are:

1. Area of triangle ADC is 25 in^2.

2. Area of triangle BDC is 15 in^2.

3. Area of triangle CDE is 12 in^2.


Please, see the attached files.

Thanks.

8 0
3 years ago
Factor the following perfect square trinomial
yKpoI14uk [10]
25x^2+10x+1

25x^2+5x+5x+1

5x(5x+1)+1(5x+1)

(5x+1)(5x+1)

(5x+1)^2
6 0
3 years ago
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