The answer is B. 120
nCr = n! / ((r! * (n - r)!)
n = 10
r = 3
10C3 = 10! / ((3! * (10 - 3)!)
= 10! / ((3! * 7!)
= (10 * 9 * 8 * 7 * 6 * 5 * 4 * 3 * 2 * 1) / (3 * 2 * 1 * 7 * 6 * 5 * 4 * 3 * 2 * 1)
= 3628800 / 30240
= 120
6)6x^2y^5
8) 4×5×6x
9)6×1×6
7.7 because it is more specific into the whole number but not just that and the decimal
Answer:
32
Step-by-step explanation:
plug in
1/2 (3(3)+4(25)+5) - ((5)2+5(3))
inside parentheses first
1/2 (114) - (25)
multiply
57 - 25
subtract
32
-3 i think i used a calculator
