Notes
Problem 1: This problem involves parameters Qais is writing code to calculate formulas from his math class. He's currently working on a procedure to calculate average speed, based on this formula:
Average speed=
Total Time/Total Distance
Highlight which of these is the best procedure for calculating and displaying average speed. PROCEDURE calcAvgSpeed (distance, time) { DISPLAY (distance/time) } PROCEDURE calcAvgSpeed (distance) { DISPLAY (distance/time) } PROCEDURE calcAvgSpeed (distance, time) { DISPLAY (time/distance) } Problem 2: Procedures with return values James Hunter is looking through his classmate's program and sees a procedure called heightenEmotions: PROCEDURE heightenEmotions(myEmotion)
{ moreEnergy ← CONCAT(myEmotion, "!!!")
moreVolume ← UPPER(moreEnergy)
RETURN moreVolume }
That procedure manipulates strings using two built-in procedures, CONCAT for concatenating two strings together, and UPPER for converting a string to uppercase.
James Hunter then sees this line of code:
heightenEmotions("im mad")
After that line of code runs, will nothing be displayed?
True
False
Problem 3: Procedures with return values Bubz is writing a program to calculate the carbon footprint of his activities. The procedure calcFlightFootprint calculates the pounds of carbon dioxide produced per passenger in a flight that covers a given number of miles and seats a given number of passengers.
PROCEDURE calcFlightFootprint(numMiles, numPassengers) { CO2_PER_MILE ← 53.29
carbonPerFlight ← numMiles * CO2_PER_MILE
carbonPerPassenger ← carbonPerFlight / numPassengers
RETURN carbonPerPassenger
}
Bubz wants to use that procedure to calculate the total footprint for his two upcoming flights: LA to NY: 2,451 miles and 118 passengers NY to London: 3,442 miles and 252 passengers
Which of these code snippets successfully calculates and stores her total footprint? Highlight 2 answers.
totalFootprint ← calcFlightFootprint(2451, 118) + calcFlightFootprint(3442, 252)
totalFootprint ← calcFlightFootprint(2451, 118 + 3442, 252)
totalFootprint ← calcFlightFootprint((2451, 118) + (3442, 252))
- laNyCarbon ← calcFlightFootprint(2451, 118) nyLondonCarbon ← calcFlightFootprint(3442, 252) totalFootprint ← laNyCarbon + nyLondonCarbon
</div> </div> </div> </div>