Answer:
The friend walks <em>60 m</em> further than the other person
Step-by-step explanation:
Given the dimensions of the soccer field:
Width = 90 m
Length = 120 m
One person walks along its diagonal.
As the length and width of the field are perpendicular, Diagonal can be calculated using Pythagorean Theorem:


So, the distance walked by the person along the diagonal = 150 m
Distance walked by the person's friend to reach the opposite point = Width + Length = 120 + 90 = 210 m
So, the difference of the two distances will give us the distance that was walked further by the friend.
The difference is = 150 - 90 = <em>60 m</em>
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So, the friend walks 60 m further than the other person.
Answer:16
Step-by-step explanation:dsbwdb
Answer:
1/4 is A and 1/20 is B
Step-by-step explanation:
Not much of an explanation needed
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