26+6x is grater then or equal to 4(x+15)
x > -17
x > 17
x > 15
x < 20.5

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Ответ:

natalie0908

16.04.2022

Mathematics

495

Step-by-step explanation:

${12 \: }^{c} \: 4 = \frac{12!}{4!(12 - 4)!} \\ = \frac{12!}{4! \times 8!} \\ = \frac{12 \times 11 \times 10 \times 9 \times 8!}{4! \times 8!}$

canceling 8! from both numerator and denominator.

$\frac{12 \times 11 \times 10 \times 9}{4 \times 3 \times 2 \times 1} \\ = 11 \times 9 \\ = 495$

Factorial of an integer, in mathematics, is the product of all positive integers less than or equal to the given positive integer.

Factorial of a number is denoted by placing an exclamation mark behind the number

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26+6x is grater then or equal to 4(x+15) x > -17 x > 17 x > 15 x < 20.5