Deon plans to ride a 15-mi bicycle trail. if his average is 20mi/h, with equation can he use to find the time t, in hours, for the ride ?

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.

Do you mind if you guys me with this question i’m on number 8

The function f(x)= -(x+5)(x+1) is down. what is the range of the function?