2 years ago

Find two consecutive numbers whose square differ by 25

1 answer:

8 0

Two consecutive numbers who’s square differs by 25 are 12 and 13. Those two numbers are consecutive and the numbers 144 and 169 differ by 25. The answer is 12 and 13.

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konstantin123 [22]

Answer: .81%

<u>Step-by-step explanation:</u>

Since each digit has to be greater than 6, that leaves only 7, 8, & 9 as successful digits.

$Probability = \dfrac{successful}{total\ possible}=\dfrac{3\times 3\times 3\times 3}{10\times 10\times 10\times 10}=\dfrac{81}{10,000}=.0081=.81\%$

4 0

2 years ago

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Given the events below, determine which equation correctly calculates the probability of drawing two kings in a row from a stand

Tems11 [23]

P of drawing two kings in a row = P of first card is a king * P of second card is a king given that the first card was a king

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You can check that this is 4/52 * 3/51

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3 years ago

What is the value of X?

expeople1 [14]

It’s C. Sorry for my bad drawings haha