Maeobenza4viz
Answered

Directions: Find the unknown in each item.
1. 7C4
2. - 6 + 19C15
3. nC5 - 126
4. 10C, = 252​

Sagot :

JamesHerioviz

Answer:

[tex]1. 35[/tex]

[tex] {7c}^{4} = \frac{7}{(7 - 4)4} = \frac{7 \times 6 \times 5 \times 4}{34} = \frac{210}{6} \\ = 35[/tex]