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Doss [256]
3 years ago
6

A team of 17 softball players need to choose three players to refill the water cooler. How many different ways are there to sele

ct 3 players?
Mathematics
1 answer:
KATRIN_1 [288]3 years ago
5 0
<h3>Answer: 680 different combinations</h3>

=======================================================

Explanation:

If order mattered, then we'd have 17*16*15 = 4080 different permutations. Notice how I started with 17 and counted down 1 at a a time until I had 3 slots to fill. We count down by 1 because each time we pick someone, we can't pick them again.

So we have 4080 different ways to pick 3 people if order mattered. But again order doesn't matter. All that counts is the group itself rather than the individual or how they rank. There are 3*2*1 = 6 ways to order any group of three people, which means there are 4080/6 = 680 different combinations possible.

An alternative is to use the nCr formula with n = 17 and r = 3. That formula is

_n C _r = \frac{n!}{r!*(n-r)!}

where the exclamation marks indicate factorials

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Annette [7]

Answer:

The equation of line in the form of Ax + By = C is: \mathbf{4x+y=-17}

Step-by-step explanation:

We need to find the equation of line, having slope m = -4 and passes through point (-2,-9)

First we need to find slope and y-intercept of the line.

The slope is given i.e. m = -4

Now, we need to find the y-intercept

Using the point (-2,-9) and slope m = -4, y-intercept can be found using:

y=mx+b\\-9=-4(-2)+b\\-9=8+b\\b=-9-8\\b=-17

Now, the equation of required line having slope m = -4 and y-intercept b = -17 is:

y=mx+b\\y=-4x-17

Now writing in form of Ax + By = C

y=-4x-17\\4x+y=-17

So, the equation of line in the form of Ax + By = C is: \mathbf{4x+y=-17}.

5 0
2 years ago
Which are partial products for 89 × 25?
KiRa [710]
89 x 20 = 1780 89 x 5 = 445 80 x 20 = 1600 9 x 20 = 180 80 x 5 = 400 9 x 
8 0
3 years ago
What is the y-intercept of the function /(x) = -2/9x + 1/3
IgorC [24]

Answer:

Step-by-step explanation:

f(x)= -2/9x + 1/3 = -2/9(0) + 1/3 = 0 + 1/3= 1/3

8 0
2 years ago
What is the value of 2 StartRoot 6 + p EndRoot minus 3 p cubed when p = negative 2 -32 -16 32 56
dmitriy555 [2]

Answer:

C

Step-by-step explanation:

2|6+p|-3p³,

when p=-2

2|6+p|-3p³=2|6-2|-3(-2)³

=2(4)-3(-8)

=8+24

=32

3 0
3 years ago
Joseph has 48 comic books. He sold one-fourth of his collection to his friend. He brought twice the number of comic books as he
Tresset [83]

Answer:

108

Step-by-step explanation:

Given that Joseph has 48 comic books.

As he sold 1/4 of his collection to his friend, so

The number of books, Josef sold = 1/4 x 48 = 12.

The number of remaining books, Josef has = 48 - 12 = 36.

As he brought twice the number of comic books as he has now, so,

the number of comic books, Josef brought = 2 x 36 = 72.

Now, total number of comic books, Josef has = 36 + 72 = 108.

6 0
3 years ago
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