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Afina-wow [57]
3 years ago
7

Find the interquartile range (IQR) of the data set. 1,1,3,4,4,5,5,5,6,7,9

Mathematics
2 answers:
iragen [17]3 years ago
8 0
The interquartile range is 3
Vlad [161]3 years ago
8 0

Answer:

The interquartile range is 3.

Step-by-step explanation:

1, 1, 3, 4, 4, 5, 5, 5, 6, 7, 9

Median: 5

(Q1) Lower quartile: 3

(Q2) Upper quartile: 6

(IQR) Interquartile range: 6 - 3 = 3

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Ben's living room is a rectangular measuring 12 yards x 204" by how many feet does the length of the room exceed the with the le
Firlakuza [10]

Answer:

The length of the room exceeds the width by 19 feet

Step-by-step explanation:

From the question, the room measures 12 yards x 204", that 12 yards x 204 inches. To determine by how many feet the length of the room exceeds the width, we will first convert both units of measurement ( yards and inches) to feet.

To convert 12 yards to feet,

1 yard = 3 feet

∴ 12 yards will be 3 × 12 feet = 36 feet

To convert 204" to feet

12" = 1 foot

∴ 204" will be 204/12 feet = 17 feet

Hence, the room measures 36 feet × 17 feet

That is, Length of the room = 36 feet

and width of the room = 17 feet

Now, to determine by how many feet the length of the room exceeds the width, we will deduct the width of the room from the length of the room, that is,

36 feet - 17 feet = 19 feet

Hence, the length of the room exceeds the width by 19 feet.

6 0
3 years ago
A racing shell, which is a boat a crew team rows, moves 20 km/h in still water. During practice, the team rows 36 km against the
saveliy_v [14]

Answer:

2 km/h

Step-by-step explanation:

Let x represent the speed of the river current, t₁ be the time spent rowing against the current and t₂ be the time spent rowing with the current.

Since the speed of the still water = 20 km/h.

The speed of rowing against the current = (20 - x)

The speed of rowing with the current = (20 + x)

We know that velocity = distance / time. Hence time = distance / velocity

t₁ = 36 / (20 - x)

t₂ = 22 / (20 + x)

but t₁ + t₂ = 3 hours

Therefore:

3 = 36 / (20 - x) + 22 / (20 + x)

multiply through by 400 - x²

3(400 - x²) = 36(20 + x) + 22(20 - x)

1200 - 3x² = 720 + 36x + 440 - 22x

3x² + 14x -40 = 0

This gives x = -6.7 or x = 2

x cannot be negative therefore x = 2 km/h

The speed of the river current is 2 km/h

4 0
3 years ago
Read 2 more answers
If sectheta=13/12 and 270°<theta<360°, then tantheta=​
Tpy6a [65]

Answer:

this should be 450° hahah sorry if I am wrong I don't know!

5 0
3 years ago
Twenty-seven is smaller than five times a number increased by seven.
vfiekz [6]

Answer:

4

Step-by-step explanation:

4=x

5x+7 =27

27=27

:(((

5 0
3 years ago
Can someone really help me please
denpristay [2]

Answer:

45-4=41 square units

Step-by-step explanation:

full shape area = 9x5=45

cut rectangle area = 4x1=4

blue shape area = 45-4=41

3 0
3 years ago
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