Use the drop-down menus to correctly complete these sentences about common data types. A variable that is used in programming and can hold a true or false value is a(n)
data type.
data
A variable that can hold a mixed sequence of letters and numbers is a(n)
type.
A variable that can hold positive or negative whole-number values is a(n)
data type.
A variable that can be used with moveable decimal points is a(n)
data type.
DONE

Look at the far left lane in the picture. explain what the red car is doing and what it needs to do to travel safely.

When is it appropriate to use an absolute reference

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;