A diameter of a circle is a chord that ___ the centre.​

What is the product of the radical expression. (7-2square root) (8+2 square root)

Find the equation of the trend line (line of best fit). show your work i'm using the points (34,76) (42,91)

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?