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Korvikt [17]
3 years ago
10

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

Mathematics
1 answer:
mart [117]3 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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Brainly please help I been asking
IrinaVladis [17]

Answer:

114

Step-by-step explanation:

break apart the shape into 2 smaller shapes and you'll get 15 and 4 for the 1st shape multiply them and you'll get 60. Then for the second shape you'll get 6 and 9 multiply them and you'll get 54. Last add them together and you get 114. (Sorry if I get it wrong)

6 0
3 years ago
What is the image of (3,9) after a dilation by a scale factor of 3 centered at the origin
Sav [38]

Answer:

(9, 27 )

Step-by-step explanation:

Since the dilatation is centred at the origin, multiply each of the coordinates of the original point by the scale factor of 3

(3, 9 ) → (3(3), 3(9)) → (9, 27 )

7 0
4 years ago
Read 2 more answers
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5 0
4 years ago
The weight, in pounds, of a newborn baby t months after birth can be modeled by W. A graph of W is shown below. Write an equatio
Agata [3.3K]

the First we need to choose two points in the graph

(0,6)=(t1,w1)

(1,7)=(t2,w2)

the variables are t and w

then we can calculate the slope

m=\frac{w2-w1}{t2-t1}=\frac{7-6}{1-0}=\frac{1}{1}=1

the equation of W is

where

m=1 ---> slope

b=6 ---> y-intercept

\begin{gathered} W=mt+b \\ W=1\cdot t+6 \\ W=t+6 \end{gathered}

the answers are

W=t+6

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5 0
1 year ago
I dunno this answer... pwease help... if you're smart
zmey [24]

Answer:

H: (2, 14)

O: (4,15)

U: (6,14)

S: (2,10)

E: (6,10)

Step-by-step explanation:

the image on the grid is after doin x- 1 and y-7

to get the preimage do the inverse , x + 1 , y + 7

note- a coordinate is written as (x,y)

so, add 1 to all the x's and 7 to all the y's on the coordinates on the grid!

and sorry for asking but, if this is right could i please get a thanks & brainliest recently a moderator deleted ALL my answers (over 400 answers) causing me to lose over 3k points so id appreciate it alot thanks xoxo

3 0
3 years ago
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