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Yuki888 [10]
2 years ago
5

5. We can perform the logical operations on strings of bits by considering each pair of corresponding bits separately (called bi

twise operation). Given two eight bit strings A = 10110001 and B = 10101100, evaluate the eight bit result after the following logical operations: (2 pts each)
Mathematics
1 answer:
finlep [7]2 years ago
6 0

Answer:

Bitwise OR operation = 111011101

             AND operation = 10100000

             NOT operation:  01001110 (NOT A)

              XOR operation: 00011101

Step-by-step explanation:

OR operation:  A + B = adding the two binary numbers together, starting from the least significant bit (LSB) and moving to the Most significant bit (MSB)

AND operation: A*B, multiplying the two binary numbers together.

NOT: taking the opposite of each binary digit

XOR: if either of the two binary numbers is 1, then the result is 1, but if they are both 1 or both 0, then the result becomes 0.

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For which values of k does the system of linear equations have zero, one, or an infinite number of solutions? [Note: not all thr
anastassius [24]

Answer:

For k = 36, there is 0 solutions

For other values of k, there is 1

We never got infinite solutions on the system.

Step-by-step explanation:

We have 2 unknowns and 2 equations:

E1     8x1 + x2 = 18

E2    k*22 x1 + 9 x2 = 18

If we multiply the E1 by 9 we obtain

E3     72 x1 + 9x2 = 162

if we substract E3 with E2 we obtain

(72- 2k) x1 = 144

Thus,

x1 = 144/ (72-2k)

That is, if 72-2k = 0, otherwise there is no solution. And 72-2k = 0 when k = 72/2 = 36.

If k is not 36, then

x1 = 144/(72-2k) and we can replace this value to obtain x2 by using E1

x2 = 18-8x1 = 18- 8 * (144/72-2k)

Which is a specific number that depends only on k. Thus,

for k = 36, there is 0 solutions

for other values of k, there is unique solution.

4 0
2 years ago
Someone help! you have 44 text messages in your inbox. How many messages can your cell phone hold? (and inbox is 88% full)
marin [14]
We can set up a proportion.

88% = 0.88

44/0.88 = x/1

Cross multiply:

0.88x = 44

Divide 0.88 to both sides:

x = 50

So your cell phone can hold 50 messages.
4 0
2 years ago
Read 2 more answers
after 24.0 days, 2.00 milligrams of an original 128.0 milligram sample remain. what is the half-life of the sample?
coldgirl [10]
<span>(1/2)n = 0.015625 
n log 0.5 = log 0.015625 
n = log 0.5 / log 0.015625 
n = 6</span><span>24 days / 6 half-lives = 4.00 days (the length of the half-life)

</span>
6 0
2 years ago
What method would you choose to solve the equation 2x^2-7=9? explain why you chose this method.
Nikolay [14]

Answer:

2.87

Step-by-step explanation:

2x^2-7=9

2x^2=9+7

2x^2/2=16/2

(square root)x^2=(square root)8

x=2.87

I used this method because I don't know any other method.

6 0
2 years ago
Read 2 more answers
EVELYN HAD 9 DOLLS, BUT SHE LOST 1/3RD OF THEM AT DAYCARE. HOW MANY TOTAL DOLLS WOULD EVELYN HAVE HAD IF SHE HAD NOT LOST THEM?
Elanso [62]

Answer:

Total Dolls would Evelyn have had if she had not lost them = 9 Dolls

Step-by-step explanation:

As given,

Total dolls Evelyn had = 9

Total dolls lost = \frac{1}{3}× 9 = 3

So, Now

Evelyn had total dools after lost = 9 - 3 = 6

If she had not lost te dolls , then she had 3 dolls more

∴ we get

If she had not lost any dolls , Evelyn had total dolls = 6 + 3 = 9

So, The answer would be :

Total Dolls would Evelyn have had if she had not lost them = 9 Dolls

3 0
1 year ago
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