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kondor19780726 [428]
2 years ago
8

How to do this here

Mathematics
1 answer:
pogonyaev2 years ago
6 0

Answer:

Step-by-step explanation:

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The coefficient of x^ky^n-k in the expression of (x+y)^n equals (n-k/k) true or false
gulaghasi [49]

Answer:

False

Step-by-step explanation:

The given statement is:

The coefficient of x^ky^n-k in the expression of (x+y)^n equals (n-k/k)

This is a false statement

Reason:

When we do expansion of (x+y)^n by binomial theorem we get the following solution:

(x+y)^n = nCk x^k y^n-k

This shows that the coefficient of  x^ky^n-k  is nCk which is equivalent to n!/(n-k)! k!

Therefore it is a false statement....

3 0
3 years ago
Which of the following could be the side measures of a right triangle?
lesya692 [45]

Answer:

c

Step-by-step explanation:

if you use the Pythagorean Theorem and take the sum of the square of the legs, it will equal the square of the hypotenuse in answer (c)

8² + 6² = 10²

64 + 36 = 100

100 = 100

4 0
2 years ago
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Divide £42 in the ratio 4:3
k0ka [10]

Answer:

Should be 24:18

Step-by-step explanation:

E

5 0
3 years ago
120% of what number is 20.4
NeTakaya
20.4÷120=0.17
0.17×100=17
8 0
2 years ago
{(-2, 6), (-5, -1), (3, 7), (-5, 0)}<br> Domain:<br> Range:<br> Function?
just olya [345]

{(-2, 6), (-5, -1), (3, 7), (-5, 0)}

Domain: The domain is all the x-values (-2, -5, 3, -5)

Range: The range is all the y-values (6, -1, 7, 0)

Function: It's not a function because of the x-value -5 is repeating.

6 0
3 years ago
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