Answer:
<h2>
64π</h2>
Step-by-step explanation:
A = π r2
diameter : 2 = r
16 : 2 = 8
A = 8²π
A = 64π
Answer:9 males
Step-by-step explanation: 27\3=9 9*2=18 females males=9
Answer:
The median is: 2
Step-by-step explanation:
First put the numbers in ascending order:
-19, -13, -4, 1, <em><u>2</u></em>, 5, 9, 14, 15
The value in the middle will be the median.
Step-by-step explanation:
You need to find six combinations of a and b such that a² + b² = 7.
a = 1, b = √6
a = √2, b = √5
a = √3, b = 2
a = 2, b = √3
a = √5, b = √2
a = √6, b = 1
Answer:
The correct option is;
False
Step-by-step explanation:
The coefficient of x^k·y^(n-k) is nk, False
The kth coefficient of the binomial expansion, (x + y)ⁿ is 
Where;
k = r - 1
r = The term in the series
For an example the expansion of (x + y)⁵, we have;
(x + y)⁵ = x⁵ + 5·x⁴·y + 10·x³·y² + 10·x²·y³ + 5·x·y⁴ + y⁵
The third term, (k = 3) coefficient is 10 while n×k = 3×5 = 15
Therefore, the coefficient of x^k·y^(n-k) for the expansion (x + y)ⁿ =
not nk