A(n) sample is a method used by pollsters to select a representative sample in which every individual in the population has an equal probability of being selected as a respondent.

Calculate the density of benzene if 300ml of it weighs 263g. a. 0.88 g/ml b. 1.14 g/ml c. 78,900 g/ml d. 37 g/ml

What is the range of the function? f(x)=-2|x+1|? a. all real numbers. b. all real numbers less than or equal to 0. c. all real numbers less than or equal to 1. d. all real numbers greater than or equal to 1

What are the solutions of the following system? y=-2x^2 y=x-2