Does the infinite geometric series diverge or converge? Explain.
1/5 + 1/10 + 1/20 + 1/40
A) it diverges it has a sum
B) it diverges doesn’t have a sum
C) it converges it has a sum
D) it converges doesn’t have a sum

Jeffery conducted a survey in his school and found that 30 of the 50 eighth grade students' favorite subject is mathematics. based on the results, jeffery concluded that out of the 200 students in his school, 120 students' favorite subject is mathematics. select the statement that is true about jeffery's conclusion. a. jeffery's conclusion is not valid because the sample was biased since only 200 students were surveyed. b. jeffery's conclusion is valid because the sample was random since all of the students were eighth grade students. c. jeffery's conclusion is valid because the sample was random. d. jeffery's conclusion is not valid because the sample was biased since all of the students were eighth grade students.

Find the amount in a continuously compounded account for the given condition. principal: $1000, annual interest rate: 4.8%, time: 2 yr

Which equation represents a line that is parallel to the line whose equation is 3x-2y=7( show all work)