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3 years ago

13

Identify the sampling technique used:A lobbyist for a major airspace firm assigns a number to each legislator and then uses a co

mputer to randomly generate ten numbers. The lobbyist contacts the legislators corresponding to these numbers.

Computers and Technology

1 answer:

trapecia [35]3 years ago

3 0

Answer:

Random Sampling

Explanation:

Random Sampling technique is being used in the given scenario.

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What are the ASE special certifications?

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It is The National Institute for Automotive Service Excellence.

Explanation:

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Ladders are a fundamental piece of equipment on construction sites and employers are expected to ensure that workers follow safe

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That statement is true.

Ladders commonly used to do a couple of construction activities in a higher region of a building or area.
If this equipment is not used properly, it could potentially caused fatal accidents for the people on the site

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3 years ago

Two machines can finish a job in StartFraction 20 Over 9 EndFraction hours. Working alone, one machine would take one hour long

Alborosie

<em><u>Answer</u></em>

5 hours

<em><u>Explanation</u></em>

The two working together can finish a job in

$\frac{20}{9} \: hours$

Also, working alone, one machine would take one hour longer than the other to complete the same job.

Let the slower machine working alone take x hours. Then the faster machine takes x-1 hours to complete the same task working alone.

Their combined rate in terms of x is

$\frac{1}{x} + \frac{1}{x - 1}$

This should be equal to 20/9 hours.

$\frac{1}{x} + \frac{1}{x - 1} = \frac{9}{20}$

Multiply through by;

$20x(x - 1) \times \frac{1}{x} +20x(x - 1) \times \frac{1}{x - 1} = 20x(x - 1) \times \frac{9}{0}$

$20(x - 1) +20x = 9x(x - 1)$

$20x - 20+20x = 9{x}^{2} - 9x$

$9{x}^{2} - 9x - 20x - 20x + 20= 0$

$9{x}^{2} - 49x + 20= 0$

Factor to get:

$(9x - 4)(x - 5) = 0$

$x = \frac{4}{9} \: or \: x = 5$

It is not feasible for the slower machine to complete the work alone in 4/9 hours if the two will finish in 20/9 hours.

Therefore the slower finish in 5 hours.

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2 years ago

(1) Prompt the user to input an integer, a double, a character, and a string, storing each into separate variables. Then, output

Alex787 [66]

Answer:

import java.util.*;

public class Main{

public static void main(String[] args) {

Scanner input = new Scanner(System.in);

int intgVal; double dblVal; char chrVal; String strVal;

System.out.print("Enter integer: ");

intgVal = input.nextInt();

System.out.print("Enter double: ");

dblVal = input.nextDouble();

System.out.print("Enter character: ");

chrVal = input.next().charAt(0);

input.nextLine();

System.out.print("Enter string: ");

strVal = input.nextLine();

System.out.println(intgVal+" "+dblVal+" "+chrVal+" "+strVal);

System.out.println(strVal+" "+chrVal+" "+dblVal+" "+intgVal);

int IntValue = (int) dblVal;

System.out.print("Cast to an integer: "+IntValue);

}

}

Explanation:

See attachment for complete program where comments were used to explain each line of the program

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3 years ago

Generally speaking, the _______ the risk, the _______ the potential return or loss

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<span>The correct answer is higher for both blank spaces.

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