Question 339923
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Set the function equal to the specific height you wish to find the time for and the solve the resulting quadratic equation.  The two roots will answer both parts of question 1.


Question 2. Answer question 3 first.  If the answer to question 3 is greater than or equal to 389, then the answer to question 2 is Yes, otherwise it is no.


Question 3.  First answer Question 4. Substitute the value from question 4 into the function to calculate the maximum height.


Question 4.  Use the formula for the x-coordinate of the vertex of a parabola.  *[tex \Large \frac{-b}{2a}].


Question 5.  Set the function equal to zero and solve for *[tex \Large t].  You are looking for the non-zero root here.


John
*[tex \LARGE e^{i\pi} + 1 = 0]
My calculator said it, I believe it, that settles it
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