I think since he runs 3 yards per hour per second their are 60 seconds in a minute so 60 times equals 180 yards per second
Answer:
D
Step-by-step explanation:
Answer:
The correct option is D. No, because a random sample from all customers of the shopping mall was not selected
Step-by-step explanation:
In statistics, Bias can be described as a term which depicts error if a sample is not taken evenly or it depicts errors taken from an unjust sampling.
In statistics, sampling bias means the errors which occur if one part of the population is favoured more then the rest of the populations. In this kind of bias, the individuals for experimentation are not chosen randomly.
As the customer satisfaction survey was distributed in only one of the gates hence, it does not give a generalized result and the result is biased.
We can solve this using substitution.
because x-y=2.5
x=y+2.5
Now substitute x into other equation.
2(y+2.5)^2-2y=125
2y^2+10y+12.5-2y=125
2y^2+8y-112.5=0
Now comes the ugly part
y=-4+-sqrt(16+900)
y=-4+-sqrt916
y=-4+-2sqrt229
x=-1.5+-2sqrt229
Answer:
Five Sixths is the word form of Fraction A.
Three fours is the word form of Fraction B.
Step-by-step explanation:
Fraction A = 5 / 6
Its word form = Five Sixths
Fraction B = 3 / 4
Its word form = Three Fours
