3 years ago

HURRYYY!!! 20 POINTS AND BRAINLIEST IF CORRECT.

Mathematics

1 answer:

Gennadij [26K]3 years ago

7 0

Its A i did the test

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5+7k>=-30 and -4k +4>20

Slav-nsk [51]

Answer:

$\large\boxed{-5\leq k$

Step-by-step explanation:

$5+7k\geq-30\ \wedge\ -4k+4>20\\\\5+7k\geq-30\qquad\text{subtract 5 from both sides}\\7k\geq-35\qquad\text{divide both sides by 7}\\\boxed{k\geq-5}\\\\-4k+4>20\qquad\text{subtract 4 from both sides}\\-4k>16\qquad\text{change the signs}\\4k$

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3 years ago

Prove that given any 17 integers, there exist nine of them whose sum is divisible by 9.

vaieri [72.5K]

This is a simple consequence of the Zero-sum problem: https://en.wikipedia.org/wiki/Zero-sum_problem

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3 years ago

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marta [7]

Answer:

2*2 = 4

4^4 = 16

16 > x + 4

Step-by-step explanation:

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2 years ago

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Neporo4naja [7]

The answer is Standard Score (Or Z-Score)

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Witch expressions can be used to calculate the volume of the rectangular prism

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Step-by-step explanation:

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