Cho x2 + y2 = 1. Tính giá trị của biểu thức: M = 2x4 + 3x2y2 + y4 + y2.

Graph the system: f(x)= 3/x-2; f(x)= 1/2x + 2

How does a low unemployment rate affect a nation's economy? a. the nation has a higher number of productive resources. b. the nation can spend more money on for unemployed people. c. the nation can save money by paying lower salaries to a large workforce. reset

Molly shared a spool of ribbon with 12 people. each person received 3 feet of ribbon. which equation can she use to find r, the number of feet of ribbon that her spool originally had?