In the Previous Problem, the Amount of Chemical $C , X ( t )$

Multiple Choice

In the previous problem, the amount of chemical $C , X ( t )$ , produced by time t is

A) $x = 800 \left( 1 - e ^ { - 400 k t } \right) / \left( 2 - e ^ { - 400 k t } \right) , \text { where } k = \ln ( 29 / 26 ) / 4000$
B) $x = 800 \left( 1 - e ^ { - 800 k t } \right) / \left( 4 - e ^ { - 800 k t } \right) , \text { where } k = \ln ( 29 / 20 ) / 8000$
C) $x = 400 \left( 1 - e ^ { - 800 k t } \right) / \left( 4 - e ^ { - 800 k t } \right) , \text { where } k = \ln ( 29 / 20 ) / 8000$
D) $x = 400 \left( 1 - e ^ { - 400 k t } \right) / \left( 4 - e ^ { - 400 k t } \right) , \text { where } k = \ln ( 29 / 26 ) / 4000$
E) $x = 600 \left( 1 - e ^ { - 800 k t } \right) / \left( 4 - e ^ { - 800 k t } \right) , \text { where } k = \ln ( 29 / 20 ) / 8000$