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docker41 [41]
2 years ago
7

An urban planner examines police-report data for many cities and towns and discovers that cities with professional football team

s tend to have higher numbers of reported small crimes, such as burglary.
Which statement best explains the effect of confounding in this relationship?

A.) The football teams are a direct cause of increased small crimes.
B.) In cities without football teams, the small crimes often go unreported.
C.) Cities without football teams most likely have lower rates of reported small crimes.
D.) Cities with football teams tend to be large, which means they have more reported small crimes.
Mathematics
1 answer:
eduard2 years ago
3 0

Answer: The answer is D

Step-by-step explanation:

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Subtract  71  from both sides of the equation :  

                     -490x2 = -71

Multiply both sides of the equation by (-1) :  490x2 = 71

Divide both sides of the equation by 490:

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When two things are equal, their square roots are equal. Taking the square root of the two sides of the equation we get:  

                     x  =  ± √ 71/490  

The equation has two real solutions  

These solutions are  x = ±√ 0.145 = ± 0.38065  

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Work Shown:

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