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3 years ago

Find all couples (p,q) of prime numbers, such that p-q and p+q are prime numbers as well

Mathematics

1 answer:

VashaNatasha [74]3 years ago

5 0

Answer:

(2,5), (2,7)

Step-by-step explanation:

Because all prime numbers besides two are odd, and and odd number plus an odd number is an even number, there should be no solutions, unless, one of those numbers is not odd. In this case, there is only one non-odd prime number, that being two. So now that you know that one of the numbers is two, and has to be two, you have a little space finding the next number. The only restrictions its that its prime, if you add two you will get another prime number, and if you subtract two you will also get a prime number. In this case, both five and seven work. Some may say that three also works, but if you subtract two from three you get one, which is considered a special number, along with zero. Hope this helped! :D

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Grace [21]

Answer:

2. 16

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Step-by-step explanation:

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Step-by-step explanation:

Consider the provided information.

The provided angles are 3x degree and 2x + 25 degree.

Two angles are said to be Supplementary angles if their sum is 180 degree.

It is given that the provided angle are supplementary angles, thus

3x + 2x + 25 = 180

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5x = 155

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Now, substitute the value of x in first angle i.e 3x.

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qwelly [4]

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1 year ago

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Kitty [74]

Hey there!

If we would want to find out what it would be, we would have to divide it.

Your correct answer would be (2.98)

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2 years ago

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uysha [10]

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Step-by-step explanation:

Since we have given that

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If Bellevue Hospital in New York City uses 100.6°F as the lowest temperature considered to be a fever.

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3 years ago

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Answer:

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2 years ago

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