PLEASE HELP I WILL GIVE BRAINLIEST. 15 POINTS. A quadratic function, w(x), has a zero at 2, and a vertex of (-1,-9). 1
What is the other zero of w\x)?

At the olympic games, many events have several rounds of competition. one of these events is the men's 100-meter backstroke. the upper dot plot shows the times (in seconds) of the top 8 finishers in the final round of the 2012 olympics. the lower dot plot shows the times of the same 8 swimmers, but in the semifinal round. which pieces of information can be gathered from these dot plots? (remember that lower swim times are faster.) choose all answers that apply: a: the swimmers had faster times on average in the final round. b: the times in the final round vary noticeably more than the times in the semifinal round. c: none of the above.

The standard deviation for a set of data is 5.5. the mean is 265. what is the margin of error?

F(x) = 1/x g(x)=x-4 can you evaluate (g*f)(0) ? why or why not?