The swan family installs an above-ground pool. the circular pool covers about 78. 5 square feet of lawn in the backyard. what is the length, in feet, of the edge of the pool? use pi equals 3.14.

(if f(x)=4x^2 and g(x)=x+1, find (f o g)(x)

Sarah used her calculator to find sin 125 degrees. she wrote down sin sin125 degrees.57. how could sarah recognize that her answer is incorrect?

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.