Giả sử biến x có giá trị là x:= ‘a5’, khai báo nào sau đây là đúng:

Answers

Answer 1

Answer:

Sorry im not Vietnam so please explain it in English or ask someone who can speak Vietnam to help you.


Related Questions

What is the major difference between categories and tags?

Categories are external and tags are internal.
Tags use URLs and categories do not.
Categories use URLs and tags do not.
Categories are internal and tags are external.

Answers

Answer:

tags use url's and categories do not

Explanation:

sorry it took to long but i found something, hope this helps

Given the following code, what logic would you need to include to print all even values stored within the array:

int[] myArray = {1,2,38,4,54,6,7,8,9,10};

for (int i = 0; i < myArray.length; i++) {
//your code goes here
}
NOTE: Your response should be just the missing logic--not the entire problem set.

Answers

The missing logic whigh would allow all the even numbers stored within the array to be printed is if(myArray[i]%2 == 0)

Even numbers are divisible by 2, and hence, will leave no remainder when divided by 2.

Using the modulo operator, each iterated value in the array should be checked if it has a remainder of 0, when divided by 2.

Hence, if the remainder is 0, then the value is even and the value should be printed.

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Q4. In what phase(s) of flight do most accidents occur? Why?

Answers

Answer:

Boeing research shows that takeoff and landing are statistically more dangerous than any other part of a flight. 49% of all fatal accidents happen during the final descent and landing phases of the average flight, while 14% of all fatal accidents happen during takeoff and initial climb.

Explanation:

hope it helps you

9. In a program with 25% loads, 10% stores, 11% branches, 2% jumps, 52% R-type. The standard CPI for each instruction type is 2 cycles loads, 2 cycles stores, 1 cycle branches, 2 cycles jumps, 1 cycle R-type. The branches have a misprediction penalty of an additional 2 cycles when it misses, which happens 30% of the time. Loads create a RAW hazard 20% of the time adding in an extra cycle to the execution time. What is the average CPI for this program on this processor

Answers

Answer:

2.6

Explanation:

beth chooses fresh vegetables every time she does marketing. she pares and cuts right away these vegetable considering that they are fresh. the moment she serves the appetizer, she washes the plate and uses it without drying. what statement best describes the situation inside teh box

Answers

Answer:

spell correctly "teh=the

Explanation:

beth chooses fresh vegetables every time she does marketing. she pares and cuts right away these vegetable considering that they are fresh. the moment she serves the appetizer, she washes the plate and uses it without drying. what statement best describes the situation inside teh box

Encryption is an effective strategy to prevent which of the following?
O eavesdropping
O jamming
O destruction of data
O tapping

Answers

First one - eavesdropping

Write a program that prompts the user to enter the month and year and displays the number of days in the month. For example, if the user entered month 2 and year 2000, the program should display that February 2000 has 29

Answers

Answer:

5

Explanation:

becauss it is impossible to actually di

Uhaul general mechanical questions 2021
Not a question. But the answers.

1) The PRIMARY purpose of the dual rear tires on this truck is to: (A) Reduce the chance of a blowout. (B) Withstand a heavier load and add greater stability. (C) Add more weight to the rear of the truck.
B
2) Which of these tools should be used on a Phillips-head screw?
B
3) Which arrow points to the alternator?
C
4) With the truck backing up and the front tires turned as shown, which way will the rear of the truck swing?
A
5) Above are four tools. Three of the tools have a similar function while one is different. Which tool performs the most different function of the four tools?
D
6) Which scaffolding above could probably hold more weight?
B
7) Which refrigerator will be easier to roll over uneven ground?
A
8) Assuming the pick-up trucks, trailers and road conditions are exactly the same, which vehicle will take a longer distance to stop?
B
9) What is the proper battery cable connection when jumping two automotive batteries? (A) Negative to Negative / Positive to Positive (B) Negative to Positive / Negative to Positive (C) It doesn't matter on 12-volt automotive batteries
A
10) Which of these filters is associated with airflow?
A
11) If a box of clothes weighing 10 lbs (4.5 kg) and a box of books weighing 10 lbs (4.5 kg) were placed on a scale, what is most likely to occur?
C
12) Which area will get the smoothest ride?
B
13) Which trailer has more downward pressure where it attaches to the car?
A
14) Which direction will wheel three rotate?
B
15) The tire above has a recommended tire pressure of 35 PSI, however, its current pressure is only 26 PSI. Which of the following could occur if driven on? (A) A tire blowout. (B) Unstable handling of the vehicle. (C) Both A & B.
C
16) Which is the proper position of the adjustable wrench for tightening a nut?
A
17) Which tire has more tread? (A) Image A (B) Image B (C) Cannot be determined
B
18) Which picture best illustrates the correct location for loading ONLY the washer in this trailer?
B
19) Which is the MOST LIKELY use for the following object? (A) Checking for a vacuum source. (B) Checking for the proper voltage at the battery. (C) Checking for electrical current traveling through a wire.
C
20) If this truck backs up with the front tires turned as shown, which way will the rear of the trailer swing?
B
21) Which illustration best demonstrates the safest ladder for this person to use?
A
22) Which method requires the least amount of effort to move the refrigerator?
A
23) With the side gears turning in the direction shown, in which direction will the top gear turn?
B
24) In order for the Hitch ball to be secured properly, what should be the last part assembled? (A) Nut (B) Shank (C) Cotter Pin
C
25) As the truck backs up, which way should the front tires be turned in order to make the trailer follow the road?
B

Answers

Moving or transportation tools, equipment and methods provides guidance

on the safe an efficient ways to move items.

The correct responses are;

1) (B); 2) B; 3) C; 4) A; 5) D; 6) B; 7) A; 8) B; 9) (A); 10) A; 11) C; 12) B; 13) A; 14) A; 15) B; 16) A; 17) B; 18) A; 19) (C); 20) B; 21) B; 22) A; 23) B; 24) (C); 25) B

Reasons:

1) The correct option is; (B) Withstand a heavier load and add greater stability

By sing two wheels on the rear of a truck, heavy loads can be hauled, and transported around corners, and bumpy roads, reducing the possibility of the load tipping the truck over, thereby keeping the truck stable.

2) The correct option is; B

The Phillips-head screw is cross shaped, and required a cross shaped screwdriver, which is option B)

3) The correct option is; C

The alternator converts mechanical rotational energy into electrical energy, and usually has a compact electrical coil and magnets within its enclosure. The alternator is option C

4) The correct option is; A

The rear of a truck moves in the direction the front tires are turned

5) The correct option is; D

Option A  and B are pliers, while option B is a spanner, all of which are used to fasten and loosen bolts and nuts. Option D is a screwdriver used to fasten and loosen screws.

6) The correct option is; B

The working platform on scaffold B has extra support from the diagonal braces.

7) The correct option is; A

The large size tires in refrigerator A increases the contact surface with the road to prevent entering into small holes

8) The correct option is; B

Due to the heavier load in the trailer of pick-up truck B, more force is required, to stop the truck according to Newton's Laws of motion, and therefore, a longer distance will be taken to stop by the truck, given similar conditions (magnitude) stopping force available

9) The correct option is; (A)

Jumping two batteries to start an automotive with a dead battery requires a Negative to Negative / Positive to Positive  connection, which is option (A)

10) The correct option is; A

The air filter will have a open outer rim for the free passage of air.

11) The correct option is; C

The scale measures the difference in weight, and the weight depends on the mass of the item. Given that the mass are equal, both weights would be equal, and therefore, the scale would be level.

12) The correct option is; B

The smoothest ride is closest to the most weight of the vehicle, which is located in the front, therefore, the area that gets the smoothest ride is option B

13) The correct option is; A

The downward pressure is given by the location of the load relative to the wheel on the trailer, that gives either a clockwise or downward moment of force when in position of option A or a counterclockwise or upward moment at B

14) The correct option is; A

Gear connected by belt or chain move in the same direction, therefore, the direction of wheel 3 is option A

15) The correct option is; B

A tire blowout will not occur because, the pressure is below the recommended pressure. However, the motion of the car will be unstable

16) The correct option is; A

When tightening a nut with an adjustable wrench, the direction of turning the wrench is towards the movable jaw, therefore, the option A is correct

17) The correct option is; B

The difference between the threads of the given tires is the depth of their grooves, therefore, the tire in option B has more thread.

18) The correct option is; A

When loading items on a trailer, the majority of the load should be located in the front, therefore, the correct location for loading only the washer is illustrated by the picture A.

19) The correct option is; (C)

The object has a lead, an insulated handle, and a electrical bulb that lights up when there is electricity, therefore, it is used for (C) Checking for electrical current travelling through a wire.

20) The correct option is; B

The trailer swings in the opposite direction to the truck.

21) The correct option is; B

The ladder in picture B is safer because it spreads more at the base

22) The correct option is; A

Most of the weight of the refrigerator act on the wheel in picture A than in picture B

23) The correct option is; B

The gear turns towards the screen on the left and away from the screen on the right, which is a direction from left to right.

24) The correct option is; (C)

The cotter pin is assembled last to hold the bolt in place, and cannot be assembled before the other parts as it will restrict their movement

25) The correct option is; B

The front tire should be turned in the opposite direction to the intended direction of the trailer.

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Write a program that prompt the user to enter a bank balance. The balance entered by the user is read into a variable named balance. The program then prompts the user to enter the amount to be deposited. The amount entered by the user is read into a variable named deposit. The program that calculates the new balance, which is the present balance plus the deposit. The program then displays the new balance.

Answers

Answer:

ertyuiopoijuhgfdsa hiyoufun tresdfghytrefgytredfg

Explanation:

look for the words

Your worksheet contains a price in cell A5 and many formulas refer to that price how would you refer to that price in the formula

Answers

Answer:

$A$5

Explanation:

The A$5 would allow the row part of the reference to stay in place but would allow the column to change.

What does '$' mean in Excel formula?

An absolute reference in Excel exists as a cell address with the dollar symbol ($) in the row or column coordinates, like $A$1. The dollar sign specifies the connection to a given cell so that it stays unchanged no matter where the formula moves.

The A$5 would permit the row position of the authority to remain in place but would permit the column to modify. The location of the $ before either the row or column or both exists what specifies what component stands frozen. Therefore, the correct answer is option b) $A$5.

Complete question:

Your worksheet contains a price in cell A5, and many formulas refer to that price. How would you refer to that price in the formulas?

a. A5

b. $A$5

c. $A5

d. A$5

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limitations of systems analysis and design​

Answers

Answer:

Explanation:

Although System analysis offers an extensive range of benefits it might also have some disadvantages. One of the main disadvantages which is mostly overlooked is the risk of too much analysing which may be costly and time consuming. It is therefore part of the analyst's job to find the right balance.

Does media contribute to the mental wellness of society?​

Answers

Answer:

However, multiple studies have found a strong link between heavy social media and an increased risk for depression, anxiety, loneliness, self-harm, and even suicidal thoughts. Social media may promote negative experiences such as: Inadequacy about your life or appearance.

How ever multiple studies show that

How do I get fix the code to make it input 3 values and get the correct output
-------------------------------------------------------------
12.20 LAB: Driving costs - functions

Driving is expensive. Write a program with a car's miles/gallon and gas dollars/gallon (both floats) as input, and output the gas cost for 10 miles, 50 miles, and 400 miles.

Output each floating-point value with two digits after the decimal point, which can be achieved as follows:
print('{:.2f}'.format(your_value))

Ex: If the input is:

20.0
3.1599

the output is:

1.58
7.90
63.20

Your program must define and call the following driving_cost() function. Given input parameters driven_miles, miles_per_gallon, and dollars_per_gallon, the function returns the dollar cost to drive those miles.

Ex: If the function is called with:

50 20.0 3.1599

the function returns:

7.89975

def driving_cost(driven_miles, miles_per_gallon, dollars_per_gallon)

Your program should call the function three times to determine the gas cost for 10 miles, 50 miles, and 400 miles.
---------------------------------------------------
I need help for this part
Ex: If the function is called with:

50 20.0 3.1599

how do I get it to input the three to get the output of 7.89975?
-------------------------------------
My code:

# Define your function here.
def driving_cost(driven_miles, miles_per_gallon, dollars_per_gallon):
return (driven_miles/miles_per_gallon) * dollars_per_gallon

if __name__ == '__main__':
# Type your code here.

# Miles per gallon from input
miles_per_gallon = float(input())

#Dollars per gallon from input
dollars_per_gallon = float(input())


# Display the results as output

print('{:.2f}'.format(driving_cost(10, miles_per_gallon,dollars_per_gallon)))
print('{:.2f}'.format(driving_cost(50, miles_per_gallon,dollars_per_gallon)))
print('{:.2f}'.format(driving_cost(400, miles_per_gallon,dollars_per_gallon)))

Answers

Answer:Change your logic to:

for (int i = 0; i < 4; i++) {

System.out.println("Please input a number between zero to 3");

// use input and don't advance the scanner every time

int input = sc.nextInt();

if (input == 0) {

System.out.println("You have selected " + right);

}

if (input == 1) {

System.out.println("You have selected " + left);

}

// so on and so forth

}

By using sc.nextInt() four times, you are looking for the next token of the input which isn't there. So fetch the input for each run of the for-loop and it will work as expected.

Explanation:

A color image uses 16bits to represent a pixel. What is the maximum number of different colors that can be represented?

Answers

Answer: A color image uses 16 bits to represent a pixel. What is the maximum number of different colors that can be represented? With 16 bits, we can represent up to 2^16 different colors. Assume six devices are arranged in a mesh topology.

Explanation:

The terms 16-bit picture, high color image, and 32K color image are all used to describe images that have 16 bits per pixel.

What is a pixel?

The smallest addressable element in a raster image or the smallest point in an all points addressable display device is known as a pixel (abbreviated as px), pel, or picture element in digital imaging.

The smallest component in most digital display systems that can be changed by software are pixels.

Photos with 16 bits per pixel are referred to as 16-bit pictures, high color images, and 32K color images.

The number of distinct colors that can be represented by 16 bits, where there are 5 bits for each of the red, green, and blue values and the 16th bit can be the alpha bit, is around 32 thousand.

Thus, the maximum number of different colors that can be represented is 32 thousand.

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the diffrence between relational data base system (RDBMS) and HDFS

Answers

Answer:

The key difference between RDBMS and Hadoop is that the RDBMS stores structured data while the Hadoop stores structured, semi-structured, and unstructured data. The RDBMS is a database management system based on the relational model

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