The sales of lawn mowers t years after a particular model is introduced is given by the function y = 5500 in(9t+4), where y is the number of lawn mowers sold. how many mowers will be sold 4 years after a model is introduced? round your answer to the nearest whole number. show your work to find the number of mowers for credit. i got a number of 20289, but i was not sure if i am correct.

The graph of y = ax^2 + bx + c is a parabola that opens up and has a vertex at (0, 5). what is the solution set of the related equation 0 = ax%2 + bx + c?

Apsychology student wishes to investigate differences in political opinions between business majors and political science majors at her college. she randomly selects 100 students from the 260 business majors and 100 students from the 180 political science majors. does this sampling plan result in a simple random sample? why or why not? no, because each group of 200 students in the sample does not have the same chance of being selected. yes, because each group of 200 students in the sample has the same chance of being selected. no, because each individual student does not have an equal chance of being selected. yes, because each individual student has the same chance of being selected.

Steve had 48 chocolates but he decided to give 8 chocolats to each of his f coworkers. how many chocolates does steve have left