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+--------+-------------------------+-------------------------+--------+--------+
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|00001b40| 6c 20 61 74 20 74 69 6d | 65 20 24 74 20 3d 20 30 |l at tim|e $t = 0|
|00001b50| 24 2c 20 69 73 20 61 20 | 63 6f 6d 6d 65 72 63 69 |$, is a |commerci|
|00001b60| 61 6c 20 6a 65 74 2c 20 | 66 6c 79 69 6e 67 20 64 |al jet, |flying d|
|00001b70| 75 65 20 6e 6f 72 74 68 | 20 61 74 20 38 20 6d 69 |ue north| at 8 mi|
|00001b80| 2f 6d 69 6e 2e 20 20 57 | 68 65 6e 20 61 72 65 20 |/min.  W|hen are |
|00001b90| 74 68 65 20 74 77 6f 20 | 70 6c 61 6e 65 73 20 63 |the two |planes c|
|00001ba0| 6c 6f 73 65 73 74 20 74 | 6f 20 65 61 63 68 20 6f |losest t|o each o|
|00001bb0| 74 68 65 72 3f 20 20 57 | 68 61 74 20 69 73 20 74 |ther?  W|hat is t|
|00001bc0| 68 65 20 6d 69 6e 69 6d | 75 6d 20 64 69 73 74 61 |he minim|um dista|
|00001bd0| 6e 63 65 20 62 65 74 77 | 65 65 6e 20 74 68 65 6d |nce betw|een them|
|00001be0| 3f 20 20 53 68 6f 77 20 | 74 68 61 74 20 74 68 65 |?  Show |that the|
|00001bf0| 20 64 69 6d 65 6e 73 69 | 6f 6e 73 20 6f 66 20 79 | dimensi|ons of y|
|00001c00| 6f 75 72 20 61 6e 73 77 | 65 72 73 20 61 72 65 20 |our answ|ers are |
|00001c10| 63 6f 72 72 65 63 74 2e | 0a 0a 25 20 4c 6f 67 69 |correct.|..% Logi|
|00001c20| 73 74 69 63 20 67 72 6f | 77 74 68 0a 5c 65 6e 64 |stic gro|wth.\end|
|00001c30| 7b 65 6e 75 6d 65 72 61 | 74 65 7d 0a 5c 65 6e 64 |{enumera|te}.\end|
|00001c40| 7b 64 6f 63 75 6d 65 6e | 74 7d 0a                |{documen|t}.     |
+--------+-------------------------+-------------------------+--------+--------+