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Musya8 [376]
3 years ago
14

There are eight runners in the 100-meter dash. In how many ways can the runners finish in first, second, and third place?

Mathematics
2 answers:
NISA [10]3 years ago
8 0

Answer: 336

Step-by-step explanation:

Given : The total number of runners = 8

The number of positions = 3

Since for awarding prize, the order of winners matters.

So by permutations ,the number of possible ways to award 3 prizes will be

^8P_3=\dfrac{8!}{(8-3)!}=8\times7\times6=336

Therefore , the total number of ways by which runners finish in first, second, and third place is 336.

Inessa [10]3 years ago
3 0
Answer is below.......

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I believe this would be A or D

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2 years ago
PLZ HELP ME ITS DUE RIGHT NOW woth 18 points
Anika [276]

Answer:

The answers to the first question are A,C,D

The answer to the second question is YZ=16

Step-by-step explanation:

(1st Question)

Since <K and <M Are equal, and both <L's are equal, KL and ML are congruent (Answer choice) because of the ASA postulate.

You need to create the following equation to find the length of KN and MN 7x-4=5x+12

(Get the "x" variable to one side)

2x-4=12

(Isolate the variable)(Remove the 4)

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(Divide the 2 by itself to remove it from the x, remember to divide both sides by 2)

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Plug in the x value into each equation

KN= 7(8)-4

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MN= 40+12

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MN=KN

(Second Question)

Since XWY(20) is half of XWZ(40), ZWY also equals 20.

This now proves the triangle is congruent by the AAS postulate.

Since the triangles are congruent, if XY = 16, YZ also equals 16.

8 0
3 years ago
Which of these is not a possible r-value?
Tems11 [23]

Answer:

Step-by-step explanation:

A

4 0
3 years ago
What would be the answer?
zmey [24]

Answer:

6

Step-by-step explanation:

To breakeven means that you made exactly as much money as you spent, so if you spent $50 to make lemonade, you would need to make $50 in profits from selling to break even

first subtract the cost of making each horse from the price of selling each horse (you do this to find out how much profits he makes from one horse):

125 - 75 = 50

now divide 300 by 50 to find out how many horses need to be made to break even:

300 ÷ 50 = 6

6 0
2 years ago
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musickatia [10]

Answer:

<h2>11.f(x)=^2-3</h2>

Step-by-step explanation:

<h2>12.And slide everything five units down. So a over here that's negative three negative one. So if we slide at five you just down we go one two three four five and get here.</h2>

Hope it helps

3 0
2 years ago
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