Suppose about 400,000 people live in an area of 160 square miles. What is the best estimate for the population density?

Use the quadratic formula to solve 5x=6x^2-3,what are the values of x?

The angle of a triangle are given as 6x,(x-3), and (3x+7). find x then find the measures of the angles

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.