WGU D278

WGU D278 cb


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1.A car drove 200 miles using 10 gallons of fuel. Which operation shoul
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d be used to compute the miles per gallon, which is 20?: Division
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2.Which operator should be used to determine if a number is evenly divi
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sible by 5?: % cb cb cb


3.A variable should hold the names of all past U.S. presidents. Which
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data type should the variable be?: String array
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4.A variable should hold a person's height in meters. Which data type sh
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ould the variable be?: Float
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5.A program uses the number of seconds in a minute in various calculati
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ons. How should the item that holds the number of seconds in a minute
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bbe de- clared?: Constant integer secondsPerMinute
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6.A program determines if a user's age is high enough to run for U.S. p
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resi-
dent. The minimum age requirement is 35. How should the item that hol
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ds the minimum age be declared?: Constant integer minAge
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7.Given integer x = 3 and integer y = 5.What is the value of the expressi
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n (x cb

/ 2.0) + y?: 6.5
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8.Given float x = 10.2 and float y = 1.0.What is the value of the expressi
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on x / y?: 10.2
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9.What kind of operator is the == in the expression i == 20?: Equality
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10.What is the purpose of parentheses () in a programming expression?
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: To group expressions
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11.Given float x = 3.0. Which expression evaluates to 2.0?: x /
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2 + 0.5 /2 + .25
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12.Which expression represents all the values of x, when x is the age ran
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ging from 18 to 24 years old?: (x >= 18) and (x <= 24)
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13.Which data type is used for items that are measured in length?: Float
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14.Which data type should be used to keep track of how many planes a
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re in a hangar?: Integer
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15.What does a programmer do first to use an existing programming librar
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?-
: Include the library
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16.What relationship is common among a programming library's functions
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-
: Functions all relate to the same purpose.
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17.What is an advantage of using a programming library?: The code
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has already been tested.
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18.Which language is dynamically typed?: Python
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, WGU D278
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19.Which cblanguagecbiscbnotcbbuiltcboncbobject-orientedcbdesigncbprinciples?:cbC
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20.A language substantially supports a programmer creating items like p
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er-
son, teacher, and students. Each item has internal data and some operat
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ions. Which characteristic describes that language?: Object-oriented
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