The height of a ball in feet is modeled by where x is the time in seconds after the ball is hit. how long is the ball in the air? (may i also get steps on how to solve these kind of questions ? )

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.

Sweet t saved 20 percent of the total cost of the green-eyed fleas new album let there be fleas on earth. if the regular price is $30 how much did sweet save

The given diagram shows the parts of a right triangle with an altitude to the hypotenuse. using the two given  measures, find the other four.