Question

what is printed to the screen if the user enters 5 when the following program is run?
let usernum = readint(\enter your favorite number: \);
let calculatednum = (usernum * usernum) + usernum;
console.log(calculatednum);
5
25
30
50
question 9
which of the following returns a random decimal number between 1 and 10?
randomfloat(1, 10);
randfloat(1, 10);
randomizer.float(1, 10);
randomizer.nextfloat(1, 10);

Explanation:

Question 8

Step1: Substitute userNum with 5

Given \( \text{userNum} = 5 \), we calculate \( \text{calculatedNum} = (\text{userNum} \times \text{userNum}) + \text{userNum} \). Substituting \( \text{userNum} = 5 \), we get \( (5 \times 5) + 5 \).

Step2: Perform the arithmetic operations

First, calculate \( 5 \times 5 = 25 \). Then, add 5: \( 25 + 5 = 30 \).

In programming (often in languages with a Randomizer class, like some educational environments), the method to get a random float between two numbers is Randomizer.nextFloat(lower, upper). The other options have incorrect method names (e.g., randomFloat, randFloat are not standard, and Randomizer.Float is incorrect syntax).

Answer:

30 (corresponding to the option with 30)

Question 9