Show that the set of all bit strings (strings of 0's and 1's) is countable. In order to show the set of all bit strings is countable, we must find a function f from ℤ+ to the set of all bit strings with certain properties. Which of the following properties are needed? (Select all that apply.) f is a well-defined function from ℤ+ to the set of all bit strings f is onto f is one-to-one f is symmetric f is reflexive f is transitive

The axis of symmetry for the graph of the function f(x)=1/4^2+bx +10 is x=6. what is the value of b?

Amanager recorded the number of bicycles sold by his company each quarter. his projected sales after t years is given by the expression below. which of the following statements best describes the expression? a. the initial sales of 575 bicycles increases at the rate of 4% over 4 quarters. b. the initial sales of 575 bicycles increases at the rate of 18% over 4 years. c. the initial sales of 575 bicycles increases at the rate of 4% over t quarters. d. the initial sales of 575 bicycles increases at the rate of 18% over t years.

Consider the functions below. function 1 function 2 function 3 select the statement which is true about the functions over the interval [1, 2] a b function 3 has the highest average rate of change function 2 and function 3 have the same average rate of change. function and function 3 have the same average rate of change function 2 has the lowest average rate of change d.