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Fiesta28 [93]
3 years ago
12

A computer is used to generate passwords. Passwords are made up of numbers from 1–8 and lowercase letters. The computer generate

s passwords one character at a time. What is the probability the first character is an even number? Enter your answer, as a decimal rounded to the nearest hundredth, in the box.
Mathematics
2 answers:
Archy [21]3 years ago
8 0

Answer: The answer is 0.1176470588235294, or rounded to the nearest hundredth 0.11, or 11%. There are 26 letters in the alphabet, so 76% that the first character is a lowercase letter. There are 8 possibilities of a number, being 1-8. 2,4,6,and 8 are favored here as the even numbers. This means that there are 4 out of 34 possibilities of the first character being an even number. 4/34 = 0.1176470588235294 or 11%. (This answer is almost a year late so you probably won't even see this)

Edit: Actually, I forgot to round so it would be 12% or 0.12.

Stolb23 [73]3 years ago
6 0
So, the first number can be any of the 10 digits (0-9). From these 10 digits, 0,2,4,6, and 8 are even numbers. The total number of even numbers is 5. Therefore, 5 numbers are not even numbers.

So, the probability that a first character is an even number is equal to the number of even divided by the total number of possible outcomes. That is, 
    P\left(even\:number\right)=\frac{5}{5+5}=\frac{5}{10}\:or\:0.50

The probability is 0.50. 
You might be interested in
Provide an example of a system of two linear equations that has no
viva [34]

Answer:

Step-by-step explanation:

No solutions....means the lines are parallel...means ur 2 equations have to have the same slope but different y intercepts

y = 2x + 4 and y = 2x + 3

========================

Infinite solutions...means u have the same line

y = 2x + 4 and 2y = 4x + 8....notice how if u reduce the 2nd one by dividing everything by 2 u get y = 2x + 4...same line

========================

1 solution....means ur equations will have different slopes and different y intercepts.

y = 2x + 4 and y = 4x + 2

now, u can pick which one u want :)

3 0
3 years ago
7x-10x+18+2x=-5.0000
inysia [295]

Simplifying

7x + -10x + 18 + 2x = -5

Reorder the terms:

18 + 7x + -10x + 2x = -5

Combine like terms: 7x + -10x = -3x

18 + -3x + 2x = -5

Combine like terms: -3x + 2x = -1x

18 + -1x = -5

Solving

18 + -1x = -5

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '-18' to each side of the equation.

18 + -18 + -1x = -5 + -18

Combine like terms: 18 + -18 = 0

0 + -1x = -5 + -18

-1x = -5 + -18

Combine like terms: -5 + -18 = -23

-1x = -23

Divide each side by '-1'.

x = 23

Simplifying

x = 23

6 0
3 years ago
1.<br> (k — 7)(k – 1) =<br> 0
LenaWriter [7]

Answer:

K = 7 or 1

Step-by-step explanation:

(7-7)(7-1)=0

(1-7)(1-1)=0

3 0
2 years ago
Un alumno multiplica un número por 32 en lugar de multiplicarlo por 23, obteniendo un producto mayor en 54 al producto original.
romanna [79]

Answer:

La suma de cifras del producto original es igual a 12.

Step-by-step explanation:

De acuerdo a la información proporcionada, si multiplicas un número "x" por 32 su resultado sería igual al producto original "y" más 54 dado que dice que se obtiene un producto mayor en 54 al producto original, lo que se puede expresar de la siguiente forma:

32x=y+54

Además, se puede inferir a partir del enunciado que si el número x se hubiera multiplicado por 23 el resultado habría sido el producto original que lo denominamos como "y", por lo que puedes decir que:

y=23x

Ahora puedes reemplazar y=23x en 32x=y+54 y despejar x:

32x=23x+54

32x-23x=54

9x=54

x=54/9

x=6

Finalmente, puedes reemplazar el valor de x en y=23x:

y=23x

y=23*6

y=138

Suma de cifras: 1+3+8 = 12

De acuerdo a esto, la respuesta es que la suma de cifras es igual a 12.

5 0
3 years ago
Got an Accuplacer tommorow going to need rapid help with the questions.​
cluponka [151]
What’s that? Maybe I can help! When?
3 0
2 years ago
Read 2 more answers
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