Which of the following statements is true of radio frequency identification (RFID) tags? A. They represent numerical data of a product by varying the thickness and pattern of vertical bars printed on the product's packaging. B. They require direct line-of-sight scanning for the radio waves to scan a product perfectly. C. They require a reader that tunes into a specific frequency to determine the number and location of products. D. They are installed in a handheld or pen-type scanner that reads and records data instantly.

What is the process in which the software development team compiles information to determine the final product.

When copying and pasting text, the first step is move your cursor type the text select the copy command select the paste command

Write a function balancechemical to balance chemical reactions by solving a linear set of equations. the inputs arguments are: reagents: symbols of reagents in string row array products: symbols of products in string row array elements: elements in the reaction in string row array elcmpreag: elemental composition of reactants in two dimensional numeric array elcmpprdcts: elemental composition of prducts in two dimensional numeric array hint: the first part of the problem is setting up the set of linear equations that should be solve. the second part of the problem is to find the integers from the solution. one way to do this is to mulitiply the rational basis for the nullspace by increasing larger integers until both the left-and right-side integers exist. for example, for the reaction that involves reacting with to produce and : reagents=["ch4", "o2"]; products =["co2", "h2o"]; elements =["c","h", "o"] elcmpreag=[1,4,0;