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MrMuchimi
4 years ago
11

A wireless garage door opener has a code determined by the up or down setting of 11 switches. How many outcomes are in the sampl

e space of possible codes?
Computers and Technology
1 answer:
Maslowich4 years ago
6 0

Answer:

2048

Explanation:

we are given the total number of switches (N) to be = 11

The number of possible outcome for each switch (n) is = 2 ( up and down)

Therefore all possible outcomes in the sample space of possible codes will be n^{N} = 2^{11} = 2048

The sample space can be represented like this :s=\{ (x_{1},x_{2},x_{3},...,x_{11})|x_{1},x_{2},x_{3},...,x_{11}\in\{up,down\} \}

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Fast we need help What is binary code? Why do computers use binary code?
vfiekz [6]

Answer:

The digits: 0 and 1, are used by binary code to represent computer text or instructions and a bit string is assigned to each symbol or instruction. Computers use binary numbers because they have circuits that are either on or off, which gives them two states to work from to make calculations and run processes.

Hope this helped you!

Explanation:

3 0
3 years ago
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Accepted identifier for a variable in PHP except:
olganol [36]

Answer:

b. & Puihaha

Explanation:

PHP variables are supposed to start with a $ sign.

Other rules followed by PHP variables are:

Starting character in variable name (after $) must be letter or _.

Other characters in variable names can be letters,numbers or _.

a. $_Puihaha

c. $Pui_haha

d. $Puihaha

satisfy these rules.

Whereas , b. & Puihaha does not satisfy as it starts with '&'. Moreover it also contains an invalid space character in the variable.

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3 years ago
Enter the name of your school or work URL and generate report.What score did it receive?
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Harold Washington College. 21.1

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3 years ago
Calculator Create a program that calculates three options for an appropriate tip to leave after a meal at a restaurant.
dsp73

Answer:

I am writing a Python program:

print("Tip Calculator \n")

bill = float(input("Cost of meal: "))

tip15pc = bill * 0.15

tip20pc = bill * 0.20

tip25pc = bill * 0.25

print("\n15%")

print("Tip amount: %.2f"% (tip15pc))

print("Total amount: %.2f \n" % (bill + tip15pc))

print("20%")

print("Tip amount: %.2f"% (tip20pc))

print("Total amount: %.2f \n" % (bill + tip20pc))

print("25%")

print("Tip amount: %.2f"% (tip25pc))

print("Total amount: %.2f" % (bill + tip25pc))

Explanation:

The program first prints the message: Tip Calculator

bill = float(input("Cost of meal: ")) This statement prompts the user to enter the amount of the bill of meal. The input value is taken as decimal/floating point number from user.

tip15pc = bill * 0.15  This statement calculates the cost of tipping at 15%

tip20pc = bill * 0.20 This statement calculates the cost of tipping at 20%

tip25pc = bill * 0.25 This statement calculates the cost of tipping at 25%

print("\n15%")  This statement prints the message 15%

print("Tip amount: %.2f"% (tip15pc))  this statement displays the amount of tip at 15% and the value is displayed up to 2 decimal places as specified by %.2f

print("Total amount: %.2f \n" % (bill + tip15pc))  This statement prints the total amount by adding the cost of mean with the 15% tip amount.

The program further computes the the amount of tip at 20% and 25%. The resultant values are displayed up to 2 decimal places as specified by %.2f Then the program prints the total amount by adding the cost of mean with the 20%  and 25% tip amounts just as computed for the 15% tip.

The screenshot of the program as well as its output is attached.

4 0
3 years ago
Wireless technology is best described as a/an
IgorLugansk [536]

Answer:

mobile computing system

Explanation:

6 0
4 years ago
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