Which of the following is true of spam? select one: a. spam is a type of attack with which a hacker takes over computers via the internet and causes them to flood a target site with demands for data and other small tasks. b. spam is a program in which malicious code is hidden inside a seemingly harmless program. c. spam is a set of programs that enables its user to gain administrator-level access to a computer without the end user’s consent or knowledge. d. spam is an extremely inexpensive method of marketing used by many legitimate organizations.

There is a simple pattern for determining if a binary number is odd. what is it and why does this pattern occur? how many bits would you need if you wanted to have the ability to count up to 1000? how high could you count in binary if you used all 10 of your fingers as bits? (finger up means 1, finger down means 0)

The volume v and paper surface area a of a conical paper cup are given by where r is the radius of the base of the cone and h is the height of the cone. a. by eliminating h, obtain the expression for a as a function of r and v. b. create a user-de ned function that accepts r as the only argument and computes a for a given value of v. declare v to be global within the function. c. for v ! 10 in.3 , use the function with the fminbnd function to compute the value of r that minimizes the area a. what is the corresponding value of the height h? investigate the sensitivity of the solution by plotting v versus r. how much can r vary about its optimal value before the area increases 10 percent above its minimum value?

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