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2 years ago

Helphelphelphelp please

Mathematics

1 answer:

jek_recluse [69]2 years ago

5 0

Answer:

25.12 inch³

Step-by-step explanation:

The volume formula for a cone is 1/3 πr²h

sub in the numbers to get the volume

1/3 x 4 x 3.14 x 6 = 25.12

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Prove that if a and b are positive integers whose sum is a prime p, their greatest common divisor is 1.

Tasya [4]

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Let assume there exist such positive integers $a$ and $b$ whose sum is a prime number $p$ , that their greatest common divisor is greater than 1.

$a,b\in\mathbb{Z^+}\\d=\text{gcd}(a,b)>1\\\\a=de\\b=df\\e,f\in\mathbb{Z^+}\\\\a+b=p\\de+df=p\\d(e+f)=p\\$

Since $p$ is a prime number and $d>1$ , then $d=p \wedge e+f=1$ , but we assumed earlier that $e,f\in\mathbb{Z^+}$ , and there are no two positive integers that sum up to 1.

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Answer:

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vovikov84 [41]

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Step-by-step explanation:

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