You must try to remove one of the unknown variables from the system by multiplying one in a way that when adding (or subtracting) one to another “makes it disappear” and so whatever value you get can be substituted back in to get the other unknown!
The local drugstore is offering 15% off the normal price for a 16-pack of AAA batteries. If a 16-pack of AAA batteries is normal
1 answer:
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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
is the expression that demonstrates the distributive property
<em><u>Solution:</u></em>
Given that,
At a ski resort, of the 300 skiers are beginners
of the 260 snowboarders are beginners
The resort staff used the distributive property to make the calculation of the total number of beginners on the ski slopes
Beginners in skiers = of the 300
Beginners in snowboarders = of the 260
Total number of beginners = Beginners in skiers + Beginners in snowboarders
We have to use distributive property
The distributive property of multiplication states that when a number is multiplied by the sum of two numbers, the first number can be distributed to both of those numbers and multiplied by each of them separately, then adding the two products together for the same result as multiplying the first number by the sum
<h3>a(b + c) = ab + bc</h3><em><u>Therefore, our expression is:</u></em>
We have to take as common term to get distributive property
Thus distributive property is applied