Expression 6: "f" Subscript, 3 , Baseline left parenthesis, "x" , right parenthesis equals left brace, 2 less than or equal to "x" less than or equal to 90 : negative 0.0 0 0 0 5 3 7 3 7 6 6 5 6 8 "x" cubed plus 0.0 0 9 8 4 8 1 "x" squared minus 0.7 5 6 7 7 5 5 6 "x" plus 51.9 7 0 1 9 5 3 , right bracef3x=2≤x≤90:−0.00005373766568x3+0.0098481x2−0.75677556x+51.9701953
6
Expression 7: "f" Subscript, 4 , Baseline left parenthesis, "x" , right parenthesis equals "f" Subscript, 3 , Baseline left parenthesis, left parenthesis, 120 minus "x" , right parenthesis , right parenthesisf4x=f3120−x
7
Hidden Label: left parenthesis, "a" , round left parenthesis, "f" Subscript, 4 , Baseline left parenthesis, "a" , right parenthesis , right parenthesis , right parenthesisa,roundf4a
Label
equals=
left parenthesis, 30 , 24 , right parenthesis30,24