Multiply by 12 so 8
thank you hope this helps
Answer:
A)
Step-by-step explanation:
Answer:
d) 330
Step-by-step explanation:
The number of ways can a dance instructor send 4 of her 11 students to summer dance program is C(11 , 4)
That is
ways
by using formula ![n_{C_{r} } = \frac{n!}{(n-r)!r!}](https://tex.z-dn.net/?f=n_%7BC_%7Br%7D%20%7D%20%3D%20%5Cfrac%7Bn%21%7D%7B%28n-r%29%21r%21%7D)
now simplification
![11_{C_{4} } = \frac{11!}{(11-4)!4!}](https://tex.z-dn.net/?f=11_%7BC_%7B4%7D%20%7D%20%3D%20%5Cfrac%7B11%21%7D%7B%2811-4%29%214%21%7D)
= ![\frac{11X10X9X8X7!}{(7!)4X3X2X1}](https://tex.z-dn.net/?f=%5Cfrac%7B11X10X9X8X7%21%7D%7B%287%21%294X3X2X1%7D)
after cancelling 7! and on simplification
= ![\frac{11X10X9X8}{4X3X2X1}](https://tex.z-dn.net/?f=%5Cfrac%7B11X10X9X8%7D%7B4X3X2X1%7D)
after cancellation we get 330 ways
The number of ways can a dance instructor send 4 of her 11 students to summer dance program is 330
Answer:
A triangle is shown Below based on this triangle which one of the following statements is true
Step-by-step explanation:
Answer:
the first one
Step-by-step explanation: