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mr Goodwill [35]
3 years ago
15

Suppose you are running a racing tournament with 12 horses. All eligible horses run in the race at once, and after the first rac

e, the last two horses are eliminated.
a) Find the total number of possible finishes of the first race.

b) How many different possible groups are there for the second race?
(Show work)
Mathematics
1 answer:
borishaifa [10]3 years ago
4 0

Answer:

a)  66

b)  45

Step-by-step explanation:

We have 12 horses and after the first race 2 of them have to be eliminated

that condition is equal to consider that 10 horses will be available for the second race.

The number of possiblities we have for the first race is the combination of 12 horses in group of 10

C¹²₁₀   =  12!/ (2!)* (12-2)!   =  12*11/2   = 66

For the second race

C¹⁰₈  = 10! / 8! * (10-8)!   =   10*9/ 2   = 45

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I need the answer I will mark u brainalist
pashok25 [27]

Answer:

x= 1

Step-by-step explanation:

x = 1 is the axis of symmetric for the graph

if we draw a line parallel to the y axis one units to the right side of the origin we get the line of symmetry of the graph.

and since the line of symmetry is parallel to y axis and passes thru the point (1, 0) it's equation is x= 1

3 0
2 years ago
How many solutions does this equation have? -3 – 7t = -7t - 3
nignag [31]

Answer:

3)infinitely many solution

Step-by-step explanation:

-3 - 7t = -7t - 3

-7t + 7t = -3 + 3

0 = 0

if there is same number on both side it have infinitely many solution.

hope u like it ‍❤️‍❤️‍‍❤️‍

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3 0
3 years ago
A factory produces bottled water at a rate of 2,000 cases per hour. They know that 1.14% of the cases must be rejected because a
IRINA_888 [86]
1.14 per 100 or 1.14:100 or \frac{1.14}{100}

\frac{1.14}{100} =  \frac{n}{2000}

I will multiply the numerator by 20 because multiplying by 20 is how 100 became 2000
22.8 cases are rejected per hour.
4 0
3 years ago
<img src="https://tex.z-dn.net/?f=n%20%3D%2020" id="TexFormula1" title="n = 20" alt="n = 20" align="absmiddle" class="latex-form
devlian [24]

Answer:

s=10

Step-by-step explanation:

Basically, the range rule-of-thumb is that the range is generally about four times the standard deviation.

<u>First, we find the range:</u>

Range=Maximum-Minimum

Range=100-60

Range=40

<u>Next, divide the range by 4 to get the standard deviation</u>

Range=4(Standard Deviation)

40=4(Standard Deviation)

10=Standard Deviation

Therefore, s=10, which is the standard deviation

6 0
2 years ago
Read 2 more answers
Whoever gets it right can have brainliest, but answer ASAP!
Mars2501 [29]

5^2 + 3 - 1 = 27

18 / 2 = 9

27 / 9 = 3

Answer is 3

Hope This Helps!

7 0
2 years ago
Read 2 more answers
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