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LenaWriter [7]
2 years ago
14

Some students are studying the amount of pollution in a river They are using a computer to measure the pollution level using sen

sors to record and print the result.
Name two sensors they should use to measure the amount of pollution.
Computers and Technology
1 answer:
Tpy6a [65]2 years ago
4 0

Answer:

optical sensors

Explanation:

optical sensors measure the amount of gases like carbon dioxide and carbon monoxide in the air

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Semmy [17]
B. Spreadsheets is the answer
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3 years ago
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Vendors who use open source as part of their product offerings can expect to bring new products to the market faster because: Gr
tamaranim1 [39]

Answer:

A.  they can skip whole segments of the software development process.

Explanation:

A software development process refers to the process of dividing software development work into various phases for product management, project management and to improve the design.

Vendors who use open source as part of their product offerings can expect to bring new products to the market faster because they can skip whole segments of the software development process.

They don't have to go through different phases of software development.

6 0
3 years ago
Please help me with these questions
adelina 88 [10]

3. A, (first choice)

4. C (Third choice from top)


6 0
3 years ago
When the code that follows is executed, a message is displayed if the value the user entersvar userEntry = (prompt("Enter cost:"
Reika [66]

Answer:

The answer is "Option b".

Explanation:

In the given-code variable "userEntry" is defined that prompt the user to input value and in the next step, the conditional statement is used, which checks the input value is not a number and greater than 500 with use of OR operator. if the condition is true it uses the alert box to print the message, that's why in this question except "choice b" all were wrong.

4 0
3 years ago
Write a program that uses the Purchase class in 5.13. Set the prices to the following: Oranges: 10 for $2.99 Eggs: 12 for $1.69
Xelga [282]

Answer:

Explanation:

The following program is written in Java. Using the program code from Purchase class in 5.13 I created each one of the fruit objects. Then I set the price for each object using the setPrice method. Then I set the number of each fruit that I intended on buying with the setNumberBought method. Finally, I called each objects getTotalCost method to get the final price of each object which was all added to the totalCost instance variable. This instance variable was printed as the total cost of the bill at the end of the program. My code HIGHLIGHTED BELOW

//Entire code is in text file attached below.

//MY CODE HERE

       DecimalFormat df = new DecimalFormat("0.00");

       oranges.setPrice(10, 2.99);

       oranges.setNumberBought(2*12);

       eggs.setPrice(12, 1.69);

       eggs.setNumberBought(2*12);

       apples.setPrice(3, 1);

       apples.setNumberBought(20);

       watermelons.setPrice(1, 4.39);

       watermelons.setNumberBought(2);

       bagels.setPrice(6, 3.50);

       bagels.setNumberBought(12);

       totalCost = oranges.getTotalCost() + eggs.getTotalCost() + apples.getTotalCost() + watermelons.getTotalCost() + bagels.getTotalCost();

       System.out.println("Total Cost: $" + df.format(totalCost));

   }

}

5 0
3 years ago
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