AE = X = 5.35889894354

Expression 19: "E" Subscript, 2 , Baseline equals "D" Subscript, 2 , Baseline plus "D" Subscript, "E" , Baseline sine left parenthesis, 180 minus 30 , right parenthesis equals 3.8 4 7 2 8 3 2 5 9 9 9

equals

3.8 4 7 2 8 3 2 5 9 9 9

Expression 20: "y" equals negative StartRoot, 4 squared minus left parenthesis, "x" minus "E" Subscript, 1 , Baseline , right parenthesis squared , EndRoot plus "E" Subscript, 2 , Baseline Has graph. To audio trace, press ALT+T.

Expression 21: negative StartRoot, 4 squared minus left parenthesis, "x" minus "E" Subscript, 1 , Baseline , right parenthesis squared , EndRoot plus "E" Subscript, 2 , Baseline equals 0

Expression 22: "x" squared minus 2 "E" Subscript, 1 , Baseline "x" plus "E" squared minus 4 squared plus "E" squared equals 0

Expression 23: "a" equals negative 2 "E" Subscript, 1 , Baseline equals negative 7.4 6 0 8 8 7 1 8 6 9 6

equals

negative 7.4 6 0 8 8 7 1 8 6 9 6

Expression 24: "b" equals "E" squared minus 4 squared plus "E" squared equals 12.7 1 7 7 9 7 8 8 6 8

equals

12.7 1 7 7 9 7 8 8 6 8

Expression 25: "F" Subscript, 1 , Baseline equals StartFraction, negative "a" Over 2 , EndFraction plus StartRoot, left parenthesis, StartFraction, negative "a" Over 2 , EndFraction , right parenthesis squared minus "b" , EndRoot equals 4.8 2 5 1 6 3 4 2 8 5 8

equals

4.8 2 5 1 6 3 4 2 8 5 8

Expression 26: "F" Subscript, 2 , Baseline equals "A" Subscript, 2 , Baseline equals 0

equals

Expression 27: "G" Subscript, 1 , Baseline equals StartFraction, "B" Subscript, 2 , Baseline left parenthesis, "E" Subscript, 1 , Baseline minus "B" Subscript, 1 , Baseline , right parenthesis Over "E" Subscript, 2 , Baseline , EndFraction plus "B" Subscript, 1 , Baseline equals 5.8 1 8 8 0 7 4 3 4 3 5

equals

5.8 1 8 8 0 7 4 3 4 3 5

Expression 28: "G" Subscript, 2 , Baseline equals "B" Subscript, 2 , Baseline equals 6.0 0 1 0 5 5 8 7 2 9 1

equals

6.0 0 1 0 5 5 8 7 2 9 1

Expression 29: "H" Subscript, 1 , Baseline equals "E" Subscript, 1 , Baseline equals 3.7 3 0 4 4 3 5 9 3 4 8

equals

3.7 3 0 4 4 3 5 9 3 4 8

Expression 30: "H" Subscript, 2 , Baseline equals "A" Subscript, 2 , Baseline equals 0

equals

Graphs

Expression 32: polygon left parenthesis, "E" , "F" , right parenthesis Has graph.

Expression 33: polygon left parenthesis, "B" , "D" , right parenthesis Has graph.

Expression 34: polygon left parenthesis, "A" , "G" , right parenthesis Has graph.

Hidden Label: left parenthesis, "E" Subscript, 1 , Baseline , "E" Subscript, 2 , Baseline , right parenthesis , left parenthesis, "H" Subscript, 1 , Baseline , "H" Subscript, 2 , Baseline , right parenthesis equals a list of points. 2 items Has graph.

Label

equals

left parenthesis, 3.7 3 , 3.8 4 7 , right parenthesis

left parenthesis, 3.7 3 , 0 , right parenthesis

Expression 36: polygon left parenthesis, "A" , "B" , "C" , "D" , right parenthesis

Points

30°