Asold-out concert hall seats 2,042 people. an hour before the show starts, the ushers count 693 people already seated. for the next thirty minutes, ushers count 1,028 more people entering the concert hall. use compatible numbers to estimate the number of people that have not yet arrived. about 400 about 200 about 500 about

Solve for x -2.3(r - 1.2 ) = -9.66 enter you answer as decimal.

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)

David estimated he had about 20 fish in his pond. a year later, there were about 1.5 times as many fish. the year after that, the number of fish increased by a factor of 1.5 again. the number of fish is modeled by f(x)=20(1.5)^x. create a question you could ask that could be answered only by graphing or using a logarithm.