The time that elapses until half the element remains is__ years. It is expecting me to use Intersect on a graphing calculator to find the answer. The example for this problem says to use y sub 2=0.5, I found the function to be y=32-22e^-0.066890232x
(x is the t in the half life formula). I hope I am correct on this. I don’t k on how to find the half part of the graph and I tried using a graphing calculator online. Thanks for the help!

Identify the number 127 as a rational or irrational. explain

The position of a moving particle is given by the position function: f(t)=-9t-t^2-0.2t^3+0.1t^4 a. at what time does the particle reverse direction? b. when is the displacement positive? (round one decimal place and answer in interval notation) c. when is the displacement negative? (round one decimal place and answer in interval notation) d. when is the particle’s acceleration positive? (round one decimal place and answer in interval notation) e. when is the particle’s acceleration negative? (round one decimal place and answer in interval notation)

Worth 100 points need the answers asap first row -x^2 2x^2 (x/2)^2 x^2 x is less than 2 x is greater than 2 x is less than or equal to 2 x is greater than or equal to 2 second row -5 -5/2 4 5 •2 is less than x& x is less than 4 •2 is less than or equal to x & x is less than or equal to 4 •2 is less than or equal to x& x is less than 4 •2 is less than x& x is less than or equal to 4