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Marat540 [252]
3 years ago
6

Calculate the semi-interquartile range of the data shown 21; 34; 53, 43; 27; 38; 20; 32; 13;42:55​

Mathematics
1 answer:
yKpoI14uk [10]3 years ago
4 0

Answer:

21yrnrndjen edjdje ebsjnednzhdhr

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Helpppppppppppppppp meeeee
Brut [27]

Answer:

3

Step-by-step explanation:

Both angles are congruent because they are opposite exterior angles.

6x+2=x+17

5x=15

x=3

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3 years ago
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What is the greatest amount of spinach she can buy
LuckyWell [14K]
10 ÷ $3 = 9 1/3

Since she can't buy 1/3 of a spinach, the greatest amount she can buy is 9.

Hope this helps!
7 0
4 years ago
River C is 400 miles longer than River D. If the sum of their lengths is 5560 ​miles, what is the length of each​ river?
KiRa [710]

Answer:

River D - 2580 miles

River C - 2980 miles

Step-by-step explanation:

Let the length of River D be represented with x

length of river C = 400 + x

total length of both rivers = 5560

x + 400 + x = 5560

2x + 400 = 5560

collect like terms

2x = 5560 - 400

2x = 5160

divide both sides of the equation by 2

x = 5160 / 2

x = 2580

length of river c = 400 + 2580 = 2980

5 0
3 years ago
In a sample of 100 steel canisters, the mean wall thickness was 8.1 mm with a standard deviation of 0.5 mm. Someone says that th
Travka [436]

Answer:

This statement can be made with a level of confidence of 97.72%.

Step-by-step explanation:

We are given the following information in the question:

Mean, μ = 8.1 mm

Standard Deviation, σ = 0.5 mm

Sample size, n = 100

We are given that the distribution of thickness is a bell shaped distribution that is a normal distribution.

Formula:

z_{score} = \displaystyle\frac{x-\mu}{\sigma}

Standard error due to sampling:

=\dfrac{\sigma}{\sqrt{n}} = \dfrac{0.5}{\sqrt{100}} = 0.05

P(mean thickness is less than 8.2 mm)

P(x < 8.2)

P( x < 8.2)\\\\ = P( z < \displaystyle\frac{8.2 - 8.1}{0.05})\\\\ = P(z < 2)

Calculation the value from standard normal z table, we have,  

P(x < 8.2) =0.9772 = 97.72\%

This statement can be made with a level of confidence of 97.72%.

8 0
4 years ago
4. If the area of the rectangle below is 170in', the length of side s is
dimaraw [331]

Answer:

d=65

Step-by-step explanation:

4 0
3 years ago
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