A 1200-mile flight takes 2.4 hours flying against the wind. The same flight
takes 2 hours flying with the wind. Find the speed of the plane without
wind and the average wind speed. Write your answer in this form: (plane
speed, wind speed) = (#, #) *

Sole with work in 10 years, the average number of hours of tv watched per week by teenagers dropped from 23.9 to 21.4. find the percent of change.

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.

Which value of y will make the inequality y< -1 false?