Expression 7: "a" left parenthesis, "y" minus 15 , right parenthesis squared positive left parenthesis, "x" , right parenthesis squared less than or equal to 460ay−152+x2≤460
7
Expression 8: "a" left parenthesis, "y" minus 15 , right parenthesis squared positive left parenthesis, "x" , right parenthesis squared less than or equal to 460ay−152+x2≤460
8
Expression 9: "a" left parenthesis, "y" minus 15 , right parenthesis squared positive left parenthesis, "x" , right parenthesis squared less than or equal to 380ay−152+x2≤380
9
Expression 10: "a" left parenthesis, "y" minus 15 , right parenthesis squared positive left parenthesis, "x" , right parenthesis squared less than or equal to 380ay−152+x2≤380
10
Expression 11: "a" left parenthesis, "y" minus 15 , right parenthesis squared positive left parenthesis, "x" , right parenthesis squared equals 460ay−152+x2=460