How many times is the println statement executed? for (int i = 0; i < 10; i++) for (int j = 0; j < i; j++) System.out.println(i * j)

How many times will the following code print "Welcome to Java"

int count=0;
do {
System.out.println("Welcome to Java");
} while (count++ <10)

A. 10

B. 11

C. 9

D. 1

Analyze the following code.

public class Test {
  public static void main(String[] args) {
    int n = 2;
    xMethod(n);
    System.out.println("n is " + n);
  }
  
  public static void xMethod(int n) {
    n = n * n;
  }
}

a. The code has a syntax error because xMethod does not return a value.

b. The code has a syntax error because xMethod is not declared static.

c. The code prints n is 1.

d. The code prints n is 2.

e. The code prints n is 3.

Solve the inequality $(x+1)^{2}<9$.

A manufacturing company employs 14 project managers, 48 foremen, and 377 laborers. In an effort to keep informed about any possible sources of employee discontent, management wants to conduct job satisfaction interviews with a sample of employees every month. a) Do you see any potential danger in the company's plan? Explain. b) Propose a sampling strategy that uses a simple random sample. c) Why do you think a simple random sample might not provide the representative opinion the company seeks? d) Propose a better sampling strategy.

Based on data collected over several sessions, a statistically minded trainer of office typists modeled the linear relationship between the number of hours of training a typist receives and the typist's speed (in words per minute) with the equation $\widehat{ Speed }=10.6+5.4 \text { Hour. }$ Which of these statements best interprets this equation? A) Typists increase their speed by 10.6 wpm for every 5.4 hours of training. B) Typists increase their speed by 5.4 wpm for every 10.6 hours of training. C) A typist who trains for an additional hour will benefit with a speed increase of 5.4 wpm. D) On average, typists tend to increase their speed by roughly 5.4 wpm for every hour of training.

A pond, with surface area 48 square metres, is being invaded by a weed. At a time t months after the weed first appeared, the area of the weed on the surface is increasing at a rate of $\frac{1}{3} t$ square metres per month. How long will it be before the weed covers the whole surface of the pond?

Show the output of the following code: double a = 6.5; a += a + 1; System.out.println(a); a = 6; a /= 2; System.out.println(a);

Solve the following equations. (In most cases, multiplication by an appropriate expression will turn the equation into a form you should recognise.) (a) $x=3+\frac{10}{x}$ (b) $x+5=\frac{6}{x}$ (c) $2 t+5=\frac{3}{t}$ (d) $x=\frac{12}{x+1}$ (e) $\sqrt{t}=4+\frac{12}{\sqrt{t}}$ (f) $\sqrt{t}(\sqrt{t}-6)=-9$ (g) $x-\frac{2}{x+2}=\frac{1}{3}$ (h) $\frac{20}{x+2}-1=\frac{20}{x+3}$ (i) $\frac{12}{x+1}-\frac{10}{x-3}=-3$ (j) $\frac{15}{2 x+1}+\frac{10}{x}=\frac{55}{2}$ (k) $y^{4}-3 y^{2}=4$ (l) $\frac{1}{y^{2}}-\frac{1}{y^{2}+1}=\frac{1}{2}$

Identify and fix the errors in the following code: 1 public class Test { 2 public void main(string[] args) { 3 double i = 50.0; 4 double k = i + 50.0; 5 double j = k + 1; 6 7 System.out.println("j is " + j + " and 8 k is " + k); 9 } 10 }

If you enter 1 2 3, when you run this program, what will be the output?

import java.util.Scanner;

public class Test1 {
public static void main(String[] args) {
Scanner input = new Scanner(System.in);
System.out.print("Enter three numbers: ");
double number1 = input.nextDouble();
double number2 = input.nextDouble();
double number3 = input.nextDouble();

// Compute average
double average = (number1 + number2 + number3) / 3;

// Display result
System.out.println(average);
  }
}

• A. 1.0
• B. 2.0
• C. 3.0
• D. 4.0

"What the peoples of Germany desire most impatiently is that talented commoners should have the same right to your esteem and to public employments as the nobles, that any trace of serfdom and of an intermediate hierarchy between the sovereign and the lowest class of the people should be completely abolished. The benefits of the Code Napoleon, the publicity of judicial procedure, the creation of juries must be so many distinguishing marks of your monarchy." -Napoleon, in a letter to the king of Westphalia, 1807. How does Napoleon believe civil and military workers should be hired? A. They should be chosen only from the lower classes. B. They should be promoted based on previous service. C. They should be chosen only from the highest classes. D. They should be chosen based on merit and nothing else.

A company buys a digital scanner for $\$12,000$. The value of the scanner is $12,000(1-\frac{n}{5})$ after $n$ years. The company has budgeted to replace the scanner when the trade-in value is $\$2,400$. After how many years should the company plan to replace the machine in order to receive this trade-in value?

What economic motivations led Europeans to seize control in West Africa? Describe which European nations gained control in West Africa.