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3 years ago

6

MEDAL

2 answers:

Novosadov [1.4K]3 years ago

5 0

The statement <span>The coefficient of x^k y^n-k in the expansion of (x+y)^n equals (n-k / k) is true. This will show the standard formula and the expansion of it. We all know that it can still be expanded based on the power or degree of the terms.</span>

balandron [24]3 years ago

4 0

Answer: the answer is FALSE. Just took this on a p e x

Step-by-step explanation:

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Please answer both questions and show all your work. Thank you!!! :)

nignag [31]

(1) let "r" denote number of rabbits, "c" number of chickens

Set up the equations:

$r + c = 1000\\4r + 2c = 3150\\\\-2r -2c = -2000\\4r + 2c = 3150\\\\2r = 1150\implies r = 575\implies c = 425$

Answer: There are 575 rabbits and 425 chickens

(2) m - number of Mike's stamps, a - number of Andrew's stamps.

Set up equations:

$m = 4a\\m-8 = 2(a+8)\\\\4a-8=2a + 16\\2a = 24\implies a = 12\implies m = 48\\$

Answer: Mike has 48 stamps. Andrew has 12 stamps.

4 0

3 years ago

Read 2 more answers

Help me please i do not know the answers

konstantin123 [22]

can you make the pic little more clear if you can :)

8 0

3 years ago

Help fast if it’s correct I’ll make you the Brainly thing

Leto [7]

The correct expressions are
-8.8
11(-2)
-6.7

6 0

3 years ago

What is the answer to this problem?

poizon [28]

The answer is B.

(0 less than or equal to y less than or equal to 9)

3 0

3 years ago

What is the area in square feet of the part of the floor that is not covered by the rug

ohaa [14]

Can you please add a picture of the problem or type all the measurements and information?

5 0

3 years ago