Suppose the correlation coefficient between the number of professional sports teams in a city and the number of hospital is 0.72.

A. As the number of sports teams increase, the numbers of hospitals tends to increase

Step-by-step explanation:

The question says 'must to be true' and the only thing we know for sure is that the correlation coefficient is positive and that means as the number of sport teams increase, the number of hospital also increase.

All the the other options suggest a causation between the two phenomenons; those can be true or cannot because correlation doesn't mean causation.

d

step-by-step explanation:

i used the pitagoras theoreme

when rotating a figure 180 degrees, imagine that you are able to take the figure and turn it clockwise or counterclockwise around a center point. to rotate a figure 180 degrees, you will need to apply the rule (x, y) → (-x, -y). start by using a coordinate grid with coordinates for each vertex of the figure. the center point of the coordinate grid is located at (0, 0), which is what you will rotate the figure around. write down the original coordinates of the shape you are going to rotate. then, apply the rule. for example, coordinate (1, 2) becomes (-1, -2). another example would be, coordinate (-4, -2) becoming (4, 2). after you change each original coordinate to the rotated coordinate, you will draw your new figure.

step-by-step explanation: