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S_A_V [24]
4 years ago
14

I need some explanation of Demorgen's laws. Specifically, a method for memorizing the laws.

Mathematics
1 answer:
-Dominant- [34]4 years ago
7 0
A method I use is to write them down... several times like handwriting
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A system has two linear equations in two variables. The graphs of the equations have the same slope but different y-intercepts.
lesya [120]
<span>A system has two linear equations in two variables. The graphs of the equations have the same slope but different y-intercepts. How many solutions does the system have?
</span><span>
A. 0</span>

They have no solutions because these two lines are parallel. They have the same slope. However, two parallel lines have no solutions because they never intersect. 

Hope this helps. 
4 0
3 years ago
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The product of three consecutive natural number is 120 . What is their sum ?
icang [17]
Let x = number 1
Let (x+1) = number 2
Let (x+2) = number 3

<span>x(x+1)(x+2)=120\\ (x^{2} +x)(x+2)=120\\ x^{3}+2 x^{2} + x^{2} +2x-120=0\\ x^{3} +3 x^{2} +2x-120=0\\</span>

4 is a solution
x^{3} +3 x^{2} +2x-120=0\\ 4^{3} +3 (4)^{2} +2(4)-120=0\\ 64+48+8-120=0

The first number is 4, the next two are 5 and 6

4x5x6=120

4+5+6=15
8 0
4 years ago
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Kyle made a down payment of $850 towards his car loan. He will be paying $415 every month for 24 months. What will the car cost
Alenkasestr [34]
I'm pretty sure the car will cost Kyle  $10810
6 0
3 years ago
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The library is 3.56 kilometers from Maria's house and 1.38 kilometers from Simon's house. How much farther does Maria live from
arlik [135]

Answer: 2.18 kilometres

Step-by-step explanation:

First we take down the information given to us

Maria's house to library (distance) = 3.56 km

Simon's house to library (distance) = 1.38 km

Now to get how farther Maria lived from the library compared to Simon, we subtract the distance between the library and Simon's house from the distance between the library and Maria's house

i.e

3.46km - 1.38km  = 2.18km

there for Maria lived 2.18 kilometres farther from the library compared to Simon.

6 0
4 years ago
A poll showed that of the 108 people at the park, 19 of them had at least one pet. How many of the people at the park had at lea
Semenov [28]
19 unless 19 is a percent then its gonna be 76 people

3 0
3 years ago
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