All categories

3 years ago

A menu that drops into the work area of the display screen is called a(n) _______ menu.

1 answer:

Klio2033 [76]3 years ago

5 0

The answer is D) pull down menu

Also called a drop-down menu, this is a menu that remains invisible until you click or hover over it, pulling up the menu options. This is useful for reducing clutter in the work area of an application, such as Excel, while keeping the tools included in the menu readily available.

You might be interested in

(In C prog.) What is the difference between scanf, getche and getchar?

lara [203]

getchar() only reads a single character input from any input stream.
getche() reads a single character from the keyboard and displays immediately on output screen without waiting for enter key
scanf() reads the whole input line according to the data type you specified.

7 0

3 years ago

The access code for a? car's security system consists of fivefive digits. the first digit cannot be zerozero and the last digit

jekas [21]

The code of five digits is of the form:

A B C D F

Where A (the first digit) may be any of 9 digits (because 0 is excluded)

B, C, and D, may be each any of 10 digits (0 - 9)

F (the last digit) may be 0, 2, 4, 6 or 8, i.e. 5 different digits.

So the number of different available codes is:

9 * 10 * 10 * 10 * 5 = 45,000.

Answer: 45,000

4 0

3 years ago

Which statement is true about wikis? Wikihow is an online dictionary that aims to define words. A wiki cannot be used in an orga

True [87]

The true statement abt Wikis is "Among Wikipedians, editors can grant or remove administrator rights."

8 0

3 years ago

Read 2 more answers

Modify the program you wrote for Chapter 6 Exercise 6 so it handles the following

Basile [38]

Answer:

#try except

try:

#opening the file

read_file = open('numbers.txt', 'r')

#Store the numbers in the variable file_numbers.

file_numbers = read_file.read()

#close the file

read_file.close()

#Split the number of files in list_values.

list_values = file_numbers.split()

#how many numbers are there

list_length = len(list_values)

try:

#loop it up

for i in range(list_length):

list_values[i] = float(list_values[i])

#Add up all the numbers, put into list_sum

List_sum = sum(list_values)

#heres how we average it

Average_value = (List_sum)/list_length

#print

print(Average_value)

except ValueError:

print( "File must have only numbers. Try again." )

#handles IOError exceptions

except IOError:

#Display statement

print("Trouble opening file. Try again.")

Explanation:

The python program uses the try-except exception handling method to catch errors in the code. The IOError is used for catching input and output errors in the program like file handling while the ValueError keyword in the except statement is used to catch data type errors from a return statement, calculation or user input.

6 0

3 years ago

Question 1. (50 points) 1.Write a program that computes information related to a sequence of entries regarding age of customers.

schepotkina [342]

Answer:

The solution code is written in Python 3:

count = 0
totalAge = 0
group1_count = 0 #age < 10
group2_count = 0 #age 10 - 20
group3_count = 0 #age 20 - 40
group4_count = 0 #age > 40
group1_total = 0 #subtotal age <= 10
group2_total = 0 #subtotal age 11 - 20
group3_total = 0 #subtotal age 21 - 40
group4_total = 0 #subtotal age > 40
age = int(input("Input an age: "))
youngest = age
oldest = age
while(age != -1):
count += 1
totalAge += age
if(age <= 10):
group1_count += 1
group1_total += age
elif(age <= 20):
group2_count += 1
group2_total += age
elif(age <= 40):
group3_count += 1
group3_total += age
else:
group4_count += 1
group4_total += age
if(youngest > age):
youngest = age
if(oldest < age):
oldest = age
age = int(input("Input an age: "))
totalCustomer = count
avgAge = totalAge / count
rangeAge = oldest - youngest
avgAgeGroup1 = group1_total / group1_count
avgAgeGroup2 = group2_total / group2_count
avgAgeGroup3 = group3_total / group3_count
avgAgeGroup4 = group4_total / group4_count
print("The total number of customers: " + str(totalCustomer))
print("Total number of customer in Group 1 (<=10): " + str(group1_count))
print("Total number of customer in Group 2 (11 - 20): " + str(group2_count))
print("Total number of customer in Group 3 (21 - 40): " + str(group3_count))
print("Total number of customer in Group 4 (> 40): " + str(group4_count))
print("Average age for all customer: " + str(avgAge))
print("Youngest age: " + str(youngest))
print("Oldest age: " + str(oldest))
print("The range of age: " + str(rangeAge))
print("Average age for group 1 (<=10): " + str(avgAgeGroup1))
print("Average age for group 2 (11 - 20): " + str(avgAgeGroup2))
print("Average age for group 3 (21 - 40): " + str(avgAgeGroup3))
print("Average age for group 4 (> 40): " + str(avgAgeGroup4))

Explanation:

Firstly, create the counter variables (e.g. count, group1_count, group2_count etc ) to track the total number of customer and number in each age group. Besides, create variables to hold the value of total of age and sub-total of each age group (Line 1 - 10). We presume there are only four age groups.

Next, prompt user to input the first age (Line 12)

Create variable youngest and oldest to track the lowest and highest age (Line 13 -14). At the moment, set the first input age as value of youngest and oldest.

Create a while loop with sentinel value -1 (Line 16). Within the loop, track the customer occurrence by incrementing counter variables by one (Line 17, 21, 24, 27 & 30). At the same time, add the current input age to totalAge and to group total (Line 18, 22, 25, 28, & 31).

If the current youngest value is bigger than the current input age, we set the current age to youngest (Line 33- 34).

If the current oldest value is smaller than the current input age, we set the current age to oldest (Line 36- 37).

After terminating the loop with -1, calculate the average age for all customers and for each age group and the range of age (Line 42- 48)

At last, display all the required calculation results using print function (50 - 62)

7 0

3 years ago