Damian uses a modem to connect to a dial-up network. which statements are true of a modem? (a) a modem connects a computer to the internet. (b) it is the fastest internet access device. the word (c) "modem" is short for modulated digital communication. (d) a modem transmits digital signals over a telephone line, (e) and a dial-up modem communicates using a telephonic call.

The forerunner to cell phones, pdas, and smartphones was

Pp 4.1 design and implement a class called sphere that contains instance data that represents the sphere’s diameter. define the sphere constructor to accept and initialize the diameter and include getter and setter methods for the diameter. include methods that calculate and return the volume and surface area of the sphere (see pp 3.5 for the formulas). include a tostring method that returns a one-line description of the sphere. create a driver class called multisphere, whose main method instantiates and updates several sphere objects.

Least square fit to polynomial write a function leastsquarefit3pol that solves a linear system of equations to find a least squares fit of a third order polynomial to an experimental data set given as two row arrays. the function leastsquarefit3pol must explicitly solve a set of linear equations and cannot use polyfit. there should be no restriction on the size of the problem that can be solved.