You are working part-time for an electronics company while going to high school. The following table shows the hourly wage, w(t), in dollars, that you earn as a function of time, t. Time is measured in years since the beginning of 2004 when
you started working.
TIME, t, Years
2
3
4
5
since 2004
Hourly wage,
9.00 19.90
10.90 12.00 13.2
14.5
w($)

5,600 x 10^3 = a) 560 b) 5,000,600 c) 5,600,000 d) 56,000

The position of a moving particle is given by the position function: f(t)=-9t-t^2-0.2t^3+0.1t^4 0 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)

If the alternate hypothesis of an experiment is “the true mean height of the giraffes is more than 15 feet” what is the null hypothesis?