In a sample of 200 observations, there were 80 positive outcomes. Find the standard error for the sample proportion.

An initial investment of $100 is now valued at $150. the annual interest rate is 5%, compounded continuously. the equation 100e0.05t = 150 represents the situation, where t is the number of years the money has been invested. about how long has the money been invested? use your calculator and round to the nearest whole number. years

Credit card a offers an introductory apr of 3.4% for the first three months and standard apr of 15.7% thereafter,

*segment an is an altitude of right ? abc with a right angle at a. if ab = 2root 5 in and nc = 1 in, find bn, an, ac.