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Tems11 [23]
3 years ago
10

In how many ways can seven runners win first,second,and third places?

Mathematics
1 answer:
kap26 [50]3 years ago
4 0
210 ways. This is a permutation question. Thus, insert 7P3 means 7 runners there is 3 places to be occupied. (7P3=210ways)
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4 years ago
Write an equation of the line in slope-intercept form. (0,2)(3,3)​
aivan3 [116]

Answer:

Slope = 1/3

Step-by-step explanation:

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3 years ago
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There are 18 people waiting for the train. Eight-ninths of them have an umbrella. How many people waiting for the train have an
Pie

Answer:

Step-by-step explanation:

Ok, so there are 18 people. If 8/9 have umbrellas, how many have umbrellas?

There is a simple solution to this.

First, lets find out how much people is 1/9

We can do this by dividing 18 by 9 to get 2

So 1/9 of the group is 2 people.

Now you can use this to find 8/9 by multiplying 2 by 8

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Another way you could do this was take the answer from the first step and subtract that from the 18

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4 0
3 years ago
When the factors of a trinomial are (x+p) and (x-q) then the coefficient of the x-term in the trinomial is:
kondor19780726 [428]

Answer:

p - q

Step-by-step explanation:

Given the factors

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= x² - qx + px - pq ← collect like terms

= x² + px - qx - pq ← factor out x in each of the x- terms

= x² + (p - q)x - pq

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6 0
3 years ago
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lutik1710 [3]
X = 20

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