Question content area top Part 1 Between 1864 and 1995, carbon dioxide (CO Subscript 2) concentration in the atmosphere rose from roughly 286 parts per million to 374 parts per million. Assume that this growth can be modeled with an exponential function Upper Q equals Upper Q 0 times left parenthesis 1 plus r right parenthesis Superscript t. Complete parts (a) and (b) below. Question content area bottom Part 1 a. By experimenting with various values of the growth rate r, find an exponential function that fits the data for 1864 and 1995. ralmost equals enter your response here (Round to five decimal places as needed.) Part 2 b. Use this exponential model to predict when the CO Subscript 2 concentration will double its 1864 level. According to this model, the CO Subscript 2 concentration will double its 1864 level in enter your response here. (Type a whole number.)
