There are 10 students on the basketball team. the coach selects 3 of them to go to a basketball clinic. in how many ways band she choose 3 of the 10 students? a.210 b.120 c.720 d.45

B.120

Step-by-step explanation:

The questions says in how many ways band she choose 3 of the 10 students

Using Combination Formula, which says

C = n! / (n! (n - r) !)

n represents the total number of students  

r represents the students he want to choose

The number of combinations 3 out of 10  

¹⁰₃C = 10! / (3! (10 - 3) !)

= 10! / 3! 7!

= 10*9*8*/ 3*2*1/ 7*6*5

= 3628800 / 6*5040

= 3628800 / 30240

= 120ways

i got 86 for this

hope this !

if you need an explanation just ask

step-by-step explanation:

given perimeter: 28cm

length: 9cm

atp,

2(l+w)=p of the reactangle

2(9+x)=28

18+2x=28

2x=28-18

x=10/2

x=5

therefore width is 5 cm