Question 219561
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You have an error in parts A and D.  I think perhaps you confused the symbol <i>m</i> meaning slope in a linear equation and the fact that time <i>t</i> is measured in months.


The correct answer to part A is:


*[tex \LARGE \ \ \ \ \ \ \ \ \ \ L\ =\ \frac{29}{7}t\,+\,24]


And the correct answer to part D is:


*[tex \LARGE \ \ \ \ \ \ \ \ \ \ W\ =\ \frac{20}{7}t\,+\,3]


As to part B:


The length at zero months is:


*[tex \LARGE \ \ \ \ \ \ \ \ \ \ L\ =\ \frac{29}{7}(0)\,+\,24\ =\ 24]


The length at one month is:


*[tex \LARGE \ \ \ \ \ \ \ \ \ \ L\ =\ \frac{29}{7}(1)\,+\,24\ =\ \frac{29}{7}\,+\,24]


And the difference is:


*[tex \LARGE \ \ \ \ \ \ \ \ \ \ \frac{29}{7}] feet


meaning that the whale increases its length that much each month, or each 30 days.  Therefore, the whale will increase its length one-thirtieth of that amount each day, namely:


*[tex \LARGE \ \ \ \ \ \ \ \ \ \ \frac{29}{7\cdot 30}] feet.


You can do your own arithmetic.


Do part D the same way, namely take the slope number <i>m</i> from the weight equation and divide it by 30.



John
*[tex \LARGE e^{i\pi} + 1 = 0]
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