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vlabodo [156]
2 years ago
5

Object Material: metal or non-metal? Prediction: Will the light bulb light up? Morm Observation: Does the light bulb light up? n

orm Conductor or non-conductor of electricity? Mor Paperclip Toothpick Rubber band Key Screw Nail Wooden ruler Metal ruler Plastic spoon​

Computers and Technology
1 answer:
Mandarinka [93]2 years ago
4 0

Answer:

it would be nail key

Explanation

mainly cuz i went to college ad it makes sense ause mettal and metal yw:)

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Trace the evaluation of the following expressions, and give their resulting values. Make sure to give a value of the appropriate
Masja [62]

Answer:

(a)\ 14"."43

(b)\ 0"0"7

(c)\ 2"8 - 2"611

(d)\ 7"(1 + 1)"46

(e)\ "1"23"4"30"7"17

Explanation:

Required

Evaluate each expression

The simple rules to follow are:

(1) All expressions in bracket will be evaluated based on its data type

(2) Divisions will return only integer values

(3) Integers immediately after string values will be concatenated (not added)

So, the results are as follows:

(a)\ 4 + 1 + 9 + "." + (-3 + 10) + 11 / 3

Evaluate till a string is encountered

4 + 1 + 9 = 14

Followed by "."

Then:

(-3 + 10)   = 7

11/ 3 = 3

"." + (-3 + 10) + 11/3 = "."73 -- because expressions after string operations are concatenated.

So, we have:

4 + 1 + 9 + "." + (-3 + 10) + 11 / 3 = 14"."43

(b)\ 8 + 6 * -2 + 4 + "0" + (2 + 5)

Evaluate till a string is encountered

8 + 6 * -2 + 4 =0

"0" + (2 + 5) ="0"7

So, we have:

8 + 6 * -2 + 4 + "0" + (2 + 5) = 0"0"7

(c)\ 1 + 1 + "8 - 2" + (8 - 2) + 1 + 1

Evaluate till a string is encountered

1 + 1 = 2

"8 - 2" + (8 - 2) + 1 + 1 = "8 - 2"611

So, we have:

1 + 1 + "8 - 2" + (8 - 2) + 1 + 1 = 2"8 - 2"611

(d)\ 5 + 2 + "(1 + 1)" + 4 + 2 * 3

Evaluate till a string is encountered

5 + 2 =7

"(1 + 1)" + 4 + 2 * 3 = "(1 + 1)"46 --- multiply 2 and 3, then concatenate

So, we have:

5 + 2 + "(1 + 1)" + 4 + 2 * 3= 7"(1 + 1)"46

(e)\ "1" + 2 + 3 + "4" + 5 * 6 + "7" + (8 + 9)

Since a string starts the expression, the whole expression will be concatenated except the multiplication and the expressions in bracket.

So, we have:

"1" + 2 + 3 + "4" + 5 * 6 + "7" + (8 + 9) = "1"23"4"30"7"17

7 0
3 years ago
What is file management?can please help me​
ruslelena [56]
Is the process of administering a system that correctly handles digital data. also i think it improves the overall function of a business workflow. but this could be totally wrong.
6 0
3 years ago
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Many large IT departments use a(n) _____ team that reviews and tests all applications and systems changes to verify specificatio
mafiozo [28]

Answer:

Quality assurance team

Explanation:

Software development life cycle (SDLC) is a process or stages of processes a software application must go through to be materialized. The stages of SDLC are planning, design, implementation or development, testing or verification, deployment and maintenance.

An implemented software design must be tested. It is tested based on the pre-dertermined design and the quality standard of the company. A group of test expect are approached for this purpose, they are called the quality assurance team

They are equipped with skills to use third party applications to analyze and verify the quality of the developed software.

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A computer scientist from the 1960's who developed the mouse, computer networking, and used a small musical keyboard to control
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Steve Jobs im pretty sure
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