116 Circles = 8n-1 117 Squares = 118 Small cubes = 119 Discs = (n^2)+2n 120 Inside pink nubs (n^2)+2n (n+4)^3 = (4n^2)+8n+8 Outside white nubs = 8n+20 Patterns 121 – 140 121 Nubs = (4n^2)+8n-4 122 People seated = 123 Dots = (2n^2)+2n 124 Dots = 5n+3 125 Overlapping 3n+2 circles = 3n 126 Connecting rods = 127 Hearts = 128 Squares = 4n-3 129 Squares = 4n+1 130 Dots = 3n+1 (n^2)+3n-2 (n^2)+3n+1 131 Cubes in row r, 132 Diagonals = 133 Triangles = 4^(n-1) 134 Squares = 135 Squares = column c = rc [(n^2)+n-2]/2 (2n^2)+2n (4n^2)-2n
116 Circles = 8n-1 117 Squares = (n^2)+2n 118 Small cubes = (n+4)^3 119 Discs = (n^2)+2n 120 Inside pink nubs = (4n^2)+8n+8 Outside white nubs = 8n+20 Patterns 121 – 140 121 Nubs = (4n^2)+8n-4 122 People seated = 3n+2 123 Dots = (2n^2)+2n 124 Dots = 5n+3 125 Overlapping circles = 3n 126 Connecting rods = (n^2)+3n-2 127 Hearts = (n^2)+3n+1 128 Squares = 4n-3 129 Squares = 4n+1 130 Dots = 3n+1 131 Cubes in row r, column c = rc 132 Diagonals = [(n^2)+n-2]/2 133 Triangles = 4^(n-1) 134 Squares = (2n^2)+2n 135 Squares = (4n^2)-2n
Equations-KEY-new.docx