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Rzqust [24]
2 years ago
12

12x^2-17xy-5y^2 factorise​

Mathematics
1 answer:
melisa1 [442]2 years ago
4 0

Answer:

(4x + y)(3x-5x)

Step-by-step explanation:

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Step-by-step explanation:

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There are 2 Senators from each of 50 states. We wish to make a 3-Senator committee in which no two members are from the same sta
Morgarella [4.7K]

Answer:

a) rCn = 1176

b) 2352

Step-by-step explanation:

a)Each committee should be formed with 3 members ( no two members could be of the same state) then

Let´s  fix a senator for any of the 50 states so in the new condition we need to combined 49 senators in groups of 2 then

rCn =  n! / (n - r )! *r!

rCn =  49!/ (49 - 2)!*2!

rCn =  49*48*47! / 47!*2!

rCn = 49*48 /2

rCn = 1176

So we can choose in 1176 different ways a senator for a given state

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1176*2 = 2352

6 0
3 years ago
–5x3y3 + 8x4y2 – xy5 – 2x2y4 + 8x6 + 3x2y4 – 6xy5 standard form
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Answer:

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Step-by-step explanation:

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