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Korvikt [17]
4 years ago
10

How many eight-bit binary strings contain at least two 1's?

Mathematics
1 answer:
mart [117]4 years ago
8 0

The number of 8-bit strings containing 2 1's =

Number of combinations of 2 from 8 = 8C2 = 8*7 =28 strings

For 3 1's we have 8C3 = 56

For 4 1's we have 8C4 = 70

For 5 's it is 56 , For 6 it is 28 , For 7 it is 8 and for 8 it is 1

So our answer is

1 + 8 + 2(28) + 2(56) + 70 = 247 (answer)

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xxMikexx [17]

Answer:

2 1/2

Step-by-step explanation:

Turn both fractions into improper fractions, multiply the whole number by the denominator and add the numerator.

4 3/4

4 * 4 + 3 = 19

19/4

2 1/4

2 * 4 + 1 = 9

9/4

Now since she drank 2 1/4 gallons of juice, subtract 9/4 from 19/4.

19/4 - 9/4 = 10/4

Now turn back into a mixed fraction, do this by putting 4 into ten twice and taking the remainder and putting it as numerator:

4 * 2 = 8

10 - 8 = 2

2 1/2

8 0
3 years ago
What does squared mean in geometry
MAVERICK [17]

In mathematics, a square is the result of multiplying a number by itself. The verb "to square" is used to denote this operation. Squaring is the same as raising to the power 2, and is denoted by a superscript 2; for instance, the square of 3 may be written as 32, which is the number 9.

7 0
4 years ago
Read 2 more answers
Help with these 4 questions
Vika [28.1K]

a. S_1 = \{1,2,3,4,5,6\}

b. S_2=\{A,B,C,D,E,F,G,H,I,J,K,L,M,N,O,P,Q,R,S,T,U,V,W,X,Y,Z\}

c. S_3 = \{HH, HT, TH, TT\}

d. S_4 =\{1T,2T,3T,4T,5T,6T,1H,2H,3H,4H,5H,6H\}

Step-by-step explanation:

We will write the sample space of all options one by one.

<u>a. Rolling a 6 sided die</u>

As the die has six sides numbered from 1 to six then the sample space will be:

S_1 = \{1,2,3,4,5,6\}

<u>b. Guessing the first initial of a student's name:</u>

As the English language has 26 alphabets, the first initial can be any alphabet so the sample space will be all letters:

S_2=\{A,B,C,D,E,F,G,H,I,J,K,L,M,N,O,P,Q,R,S,T,U,V,W,X,Y,Z\}

<u></u>

<u>c. Tossing two coins</u>

As two coins are tossed, the outcomes will be a combination of two outcomes

S_3 = \{HH, HT, TH, TT\}

<u>d. Rolling a 6 sided die and tossing a coin</u>

As the die is rolled and then a coin is tossed. The die's coin will either combine with heads or tails

So,

S_4 =\{1T,2T,3T,4T,5T,6T,1H,2H,3H,4H,5H,6H\}

Hence,

a. S_1 = \{1,2,3,4,5,6\}

b. S_2=\{A,B,C,D,E,F,G,H,I,J,K,L,M,N,O,P,Q,R,S,T,U,V,W,X,Y,Z\}

c. S_3 = \{HH, HT, TH, TT\}

d. S_4 =\{1T,2T,3T,4T,5T,6T,1H,2H,3H,4H,5H,6H\}

Keywords: Sample Space, Probability

Learn more about sample space at:

  • brainly.com/question/11007026
  • brainly.com/question/11207748

#LearnwithBrainly

7 0
3 years ago
A square has a perimeter of 44 yd. What is the length of each side?
disa [49]

Answer:

Each side has a length of 11yd

Step-by-step explanation:

To calculate the side of the square we have to apply the formula of the perimeter of ​​a square and clear s

p = perimeter = 44yd

s = side

p = s * 4

p /4 = s

we replace with known values

44yd / 4 = s

11yd = s

Each side has a length of 11yd

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3 years ago
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8 gallons is equal to how many pints?
slamgirl [31]

8 gallons equals 64 pints

6 0
3 years ago
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