A psychologist conducts a survey about the number of days per year a person was happy compared to the number of rainy days that occurred in their city. Let y be the number of days per year the person felt happy, and let x be the
number of rainy days that occurred in their city. The regression equation from the study is y = 12 +0.8643x. If there
were 150 rainy days in a city, how many days would a person be predicted to feel happy? Enter the answer as a
number rounded to the second decimal place, such as: 425.36.

We just started the introduction into circles and i have no idea how to do this.

Choose the linear inequality that describes the graph. the gray area represents the shaded region. a: y ≤ –4x – 2 b: y > –4x – 2 c: y ≥ –4x – 2 d: y < 4x – 2

On traditional maps, earth is represented in a flat plane, or by euclidean geometry. however, a globe is a more accurate model that comes from elliptical geometry.how does a globe represent the fact that there are no parallel lines in elliptical geometry? the equator is not parallel to any other latitudinal lines. the north and south poles are never connected by a geodesic. the geodesics connecting the north and south poles never intersect. the geodesics connecting the north and south poles intersect at both of the poles.