A statement is made about correlation. State whether the correlation is positive or negative and whether the correlation is most likely due to coincidence, a common underlying cause, or a direct cause.Towns with a lot of churches had a lot of homicides last year. Towns with fewer churches had fewer homicides.
A. Positive correlation; direct cause
B. Negative correlation; common underlying cause
C. Positive correlation; common underlying cause
D. Positive correlation; coincidence
Answer: C
Mathematics
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Find the standard-form equation of the hyperbola centered at the origin which satisfies the given conditions.A vertex at (0, 7) and a focus at (0, -10).
A. 
- 
= 1
B. 
- 
= 1
C. 
- 
= 1
D. 
- 
= 1
Mathematics
Assuming that the equations define x and y implicitly as differentiable functions 
find the slope of the curve 
at the given value of t.2tx + 5t2 = 5, 2y - t2 - t = 0, t = 1
A. 
B. - 
C. - 
D. 
Mathematics
Determine whether the equation defines y as a function of x. y2 = 8 - x2
A. function B. not a function
Mathematics
Graph the function.f(x) = x3 - 4x2
A. 
B. 
C. 
D. 
Mathematics