The answer is 7/10. I hope this helps you, have a good day!
B.
(9)^2 + (12)^2 = 225
Square root of 225 gives you 15 !!
We found it by applying Pythagorean’s theorem which only applies to right triangles.
Hope it help !!
N = 20, r = 15;
n C r = ( n * ( n - 1) ( n - 2 ) ... ( n - r + 1 )) / r ! =
20 C 15 = (20 * 19 * 18 * 17 ......8 * 7 * 6) / (15 * 14 * 13 ...* 5 * 4 * 3 * 2 * 1) =
= 15,504
Answer:
They can choose 15 questions in 15,504 ways.
It’s the letter “B” I think
Answer:
38.4
Step-by-step explanation:
48*20%=9.6 48-9.6=38.4
