Answer:
24x²y²
Step-by-step explanation:
For k=0 to n, the k-th term of (a+b)^n is ...
(nCk)·a^(n-k)·b^k
You want the k=2 term for the n=4 expansion with a=2x and b=-y.
Then the third term of the expansion is ...
(4C2)·(2x)^2·(-y)^2 = 6·4x^2·y^2 = 24x^2y^2
_____
nCk = n!/(k!(n-k)!)
4C2 = 4!/(2!·2!) = (4·3)/(2·1) = 6
Answer:
C
Step-by-step explanation:
1. 12+6 = 18 so that's the diameter of the big circle
2. next we take the square of 18 and multiply it by pi (324x3.14)
3. answer: 1017.36
Step-by-step explanation:
→ 2x/3 + 2 = 10
→ 2x/3 = 10 - 2 = 8
→ 2x = 8×3 = 24
→ x = 24/2 = 12
→ x = 12
<em>hope </em><em>this</em><em> answer</em><em> helps</em><em> you</em><em> dear</em><em>.</em><em>.</em><em>.</em><em>may </em><em>u </em><em>have</em><em> a</em><em> great</em><em> day</em><em> ahead</em><em>.</em><em>.</em><em>.</em><em>take </em><em>care!</em>
Answer:
Ima say D but I’m not sure srry
Step-by-step explanation:
The solutions to your problem I believe is 4 and -6.