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Anna [14]
3 years ago
8

Ms. Sanchez’s students were asked how many hours they spend participating in organized sports each week. Each row of the table r

epresents one sample from the class. 
Number of Hours Playing Sports

5

5

3

0

6

2

2

4

5

2

3

4

3

0

1

4

0

4

3

6


What is the mean of the sample in the third row?

2.2

2.8

3.0

3.4
Mathematics
1 answer:
liubo4ka [24]3 years ago
3 0

Answer:

The answer is A. 2.2

Step-by-step explanation:

3 + 4 + 3 + 0 + 1 = 11

11 divided by 5 (because there are 5 numbers in a row) = 2.2

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Answer:

adding salt makes the water freeze slower and evaporate slower too.

Step-by-step explanation:

While pure water freezes at 0°C (32°F), salt water needs to be colder before it freezes and so it usually takes longer to freeze. The more salt in the water, the lower the freezing point.

4 0
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Plz tell the answers in the correct order​
Nimfa-mama [501]

Answer:

a) 120°

Step-by-step explanation:

i think this is the right answer

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Write functions for each of the following transformations using function notation. Choose a different letter to represent each f
kupik [55]

Answer:

(a)\ T_{a,b} =(x +a,y+b)

(b)\ F_{y\ axis} = (-x,y)

(c)\ F_{x\ axis} = (x,-y)

(d)\ R_{o,90^o} = (-y,x)

(e)\ R_{o,180^o} = (-x,-y)

(f)\ R_{o,270^o} = (y,-x)

Step-by-step explanation:

Solving (a): Translate a units right, b units up

When a function is translated a units right, the number of units will be added to the x coordinate

When a function is translated b units up, the number of units will be added to the y coordinate.

So, we have:

T_{a,b} =(x +a,y+b)

Solving (b): Reflect across y-axis

When a function is translated across the y-axis, the x coordinate gets negated.

So, we have:

F_{y\ axis} = (-x,y)

Solving (c): Reflect across x-axis

When a function is translated across the x-axis, the y coordinate gets negated.

So, we have:

F_{x\ axis} = (x,-y)

Solving (d): 90 degrees rotation counterclockwise

When a function is rotated 90 degrees counterclockwise, the y-coordinates gets negated and then swapped with the x-coordinate.

So, we have:

R_{o,90^o} = (-y,x)

Solving (e): 180 degrees rotation counterclockwise

When a function is rotated 180 degrees counterclockwise, the coordinates are negated.

So, we have:

R_{o,180^o} = (-x,-y)

Solving (f): 270 degrees rotation counterclockwise

When a function is rotated 270 degrees counterclockwise, the x-coordinates gets negated and then swapped with the y-coordinate.

So, we have:

R_{o,270^o} = (y,-x)

6 0
3 years ago
Need help will give you the brainliest
Elden [556K]

Answer:

1232

Step-by-step explanation:

1232 6th grades went on the trip because 160p multiplied by .77, the amount of chaired covered by 6th graders, is equal to 1232.

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3 years ago
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Annette [7]

Answer:

9

Step-by-step explanation:

you can always use guess-and-check:

124 seems rather high

(6)P(2) = 6!/4! = 6x5 ≠ 72

(9)P(2) = 9!/7! = 9x8 = 72

3 0
3 years ago
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