How many people were surveyed altogether?

25
50
40
15

In two or more complete sentences, formulate how to use technology to calculate the appropriate regression model for the given data. you are not required to find the model, just choose the appropriate regression and explain how to use the technology. (-5,,2.,0.8), (0,-0.5), (2,-1.3), (3,-0.8), (5,2)

What is the relationship between all triangles that can be drawn given the same three angles

Write a function for a rotation 90 degrees counter clockwise about the origin, point 0