In how many ways can you select a committee of 3 students out of 10 students ?

Mathematics

1 answer:

Alex_Xolod [135]4 years ago

5 0

I’m not sure but I think it’s 6 ways

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DOes Anyone know this!?

IceJOKER [234]

Answer: the last one

Step-by-step explanation:

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3 years ago

PLEASE I NEED HELP URGENT I Will MARKE YOU BRAIN LIST

navik [9.2K]

Answer:

$1) \frac{1}{(x - 3)(x + 2)} + \frac{3}{(x + 2)(4 - x)} + \frac{2}{(x - 3)(x - 4)} \\ \\ = \frac{x - 4}{(x - 3)(x + 2)(x - 4)} - \frac{3(x - 3)}{(x - 4)(x + 2)(x - 3)} + \frac{2(x + 2)}{(x + 2)(x - 3)(x - 4)} \\ \\ = \frac{x - 4 - 3x + 9 + 2x + 4}{(x - 3)(x - 4)(x + 2)} \\ \\ = \frac{9}{(x + 2)(x - 3)(x - 4)}$

$2) \frac{2}{(x - 2)(x - 3)} + \frac{2}{(x - 1)(3 - x)} + \frac{1}{(1 - x)(2 - x)} \\ \\ = \frac{2(x - 1)}{(x - 1)(x - 2)(x - 3)} - \frac{2(x - 2)}{(x - 1)(x - 2)(x - 3)} + \frac{x - 3}{(x - 1)(x - 2)(x - 3)} \\ \\ = \frac{2x - 2 - 2x + 4 + x - 3}{(x - 1)(x -2)(x - 3)} \\ \\ = \frac{x - 1}{(x - 1)(x - 2)(x - 3)} \\ \\ = \frac{1}{(x - 2)(x - 3)}$

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3 years ago

Sole the following problems by setting up a proportion, then solving by cross multiplying. if possible, set up the proportion as

masha68 [24]

Answer:

chicken butt

Step-by-step explanation:

you fell for it

5 0

3 years ago

Help me out please!!!!!!!!

o-na [289]

y= 148-24d

Use the substitution method d= 5

= 148-24(5)

Multiply first

= 148-120

= 28 pizzas

Answer: A. 28

8 0

4 years ago

A 12-ft-by-15-ft rectangular swimming pool has a 3-ft-wide no-slip surface around it. What is the outer perimeter of the no-slip

labwork [276]

<span>we are given with a swimming pool with dimensions
</span>12-ft-by-15-ft. given that there is a <span>3-ft-wide no-slip surface around it, the new dimensions now become (12+3+3) or 18 ft by (15+3+3) or equal to 21 ft. The perimeter is the sum of the sides of the new rectangle. Perimeter is equal to 18+ 18 + 21 + 21 or equal to 78 feet</span>

4 0

3 years ago

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