Use the following table to find the equation of the regression line, between x and y ŷ = 1.84x – 0.49

ŷ = 0.38x – 2.90

ŷ = 1.2x + 1.667

ŷ = 1.48x + 2.4

Solve the system of equations. y= 2x y= x^2 - 15

David is spreading mulch on a triangular area of his flower bed. the coordinates of the vertices of the area are (1, 3), (9, 3), and (4, 6). what is the area of the triangle if each square has an area of 3 square feet?

Write the sine and cosine values of a, b, respectively, in the figure for (1) and (2) + explanation.