Plz help ive been stuck on this question forf about two days and i still dont know how to do it It needs to be squared than done but idk how and the work needs be shown someone plz help 3. The height, h, of a football in metres t seconds since it was kicked can be modelled by
= −.
+ . + .
a) What was the height of the football when the punter kicked it?
[1]
b) Determine the maximum height of the football, correct to the nearest tenth.
[4]
c) At what time was the maximum height reached?

30 pts, will mark brainliestwhat is the period of the sinusoidal function? (picture 1)what is the minimum of the sinusoidal function? (picture2)what is the maximum of the sinusoidal function? (picture 3)

Including 6% sales tax, an inn charges $135.68 per night. find the inns nightly cost

On a certain portion of an experiment, a statistical test result yielded a p-value of 0.21. what can you conclude? 2(0.21) = 0.42 < 0.5; the test is not statistically significant. if the null hypothesis is true, one could expect to get a test statistic at least as extreme as that observed 21% of the time, so the test is not statistically significant. 0.21 > 0.05; the test is statistically significant. if the null hypothesis is true, one could expect to get a test statistic at least as extreme as that observed 79% of the time, so the test is not statistically significant. p = 1 - 0.21 = 0.79 > 0.05; the test is statistically significant.