Answer: 680
Step-by-step explanation:
When order doesn't matter,then the number of combinations of choosing r things out of n = 
Given: Total participants = 17
From these, a group of 3 participants is to be tested under a special condition.
Number of groups of 3 participants chosen = 
Hence, there are 680 groups of 3 participants can be chosen,.
Answer:
let length of Ribbon B l
Therefore
L=30
Ribbons cutted in ratio 5 is to 3
Therefore length of ribbonS
Be 30*5
=150
And 3*30=90
Therefore lengths of ribbons be 150 and 90
hope this helps :)
have a great day ahead!
Answer
x1= -5, x2= -1
Step-by-step explanation:
Answer:
One possible side length could be a length of 6.7.
Step-by-step explanation:
We can assume that the hypotenuse of the triangle is 9 and one side length is 6. We can find the third side length using the pythagorean theorem [ a² + b² = c² ]. Use what we are given and solve for b.
6² + b² = 9²
36 + b² = 81
b² = 45
b ≈ 6.7
Best of Luck!
