sophie bikes s miles per hour her friend rana is slower. Rana bikes r miles per hour. Rana and sophie went for a 20 mile bike ride today each girl biked her usual speed how long did sophia wait for ranna at the end of the rout

Unaware that 35% of the 10000 voters in his constituency support him, a politician decides to estimate his political strength. a sample of 200 voters shows that 40% support him. a. what is the population? b. what is the parameter of interest? state its value c. what is the statistics of the interest? state its value d. compare your answers in (b) and (c) is it surprising they are different? if the politician were to sample another 200 voters, which of the two numbers would most likely change? explain

What is the effect on the graph of the function f(x) = x2 when f(x) is changed to f(x) − 4?

For the sequence [tex]a_{n} = 2n/(n+1)[/tex], what is the value of [tex]a_{10}[/tex]