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yanalaym [24]
2 years ago
5

Can someone please help ? ❤️

Mathematics
1 answer:
faust18 [17]2 years ago
5 0

Answer:

B

Step-by-step explanation:

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All the numbers between 20 and 40 which are multiples of 2 and 3
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21, 24, 27, 30, 33, 36, 39.

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City A has an elevation of 3447 feet above sea level while city B has an elevation of 86 feet below sea level. How much higher i
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Add both distances to find the total distance between them: 3447+86=3533 ft.
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2 years ago
The claim is that the standard deviation of the speeds of drivers in Bradford is 8 mph. An experienced driver feels that this is
Irina-Kira [14]

Answer:

Null hypothesis is rejected. Standard deviation is > 8 miles per hour

Step-by-step explanation:

σ [Population standard deviation] = 8 , s [sample standard deviation] = s

n [no of items] = 8

H0 [Null] : σ = 8 ; H1 [Alternate - Right Tail] : σ > 8

χ2 = (n - 1) . s^2 / σ^2

= 49 x (10.5)^2 / 82 = 5402.25 / 64

χ2 = 84.410

df [degree of freedom] = n -1 = 50 - 1 = 49

P value (χ^2 49 > 84.410) = 0.00125

p = 0.0013

p < α ie 0.05

So, H0 is rejected

Hence we state that standard deviation is > 8 miles per hpur

6 0
3 years ago
2. Evaluate 11h - 6 for when h = 6.​
Troyanec [42]

Answer:

60

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11*h-6

11*6-6

66-6

60

6 0
3 years ago
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