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lord [1]
2 years ago
7

An election ballot asks voters to select five city commissioners from a group of thirteen candidates. In how many ways can this

be​ done?
Mathematics
1 answer:
anzhelika [568]2 years ago
8 0
This can be solved using permutations.You can get more into this online or just accept a quick answer here.

Since there are certain roles to be filled this is a permutation.

You need a somewhat smart calculator for this.

If I remember this right you'd type in the number of people you are choosing from, P , and then the places you are trying to fill.

So it should look like this:

13 P 5

You can find where permutations and combinations are in your calculator using a handbook or the internet but usually it looks like nPr for permutation or nCr for combination.
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Plssss help math is fun!!!!
victus00 [196]

Answer:

it should be 7 fasho

Step-by-step explanation:

5 0
3 years ago
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An aircraft is spotted by two observers who are 1000 feet apart. As the airplane passes over the line joining them, each observe
Karolina [17]
See the attached figure to better understand the problem

we know that
PB+BQ=1000 ft------->PB=1000-BQ------->  equation 1

in the triangle PAB
tan 50=AB/PB----------> AB=PB*tan 50------> equation 2

in the triangle ABQ
tan 25=AB/BQ------> AB=BQ*tan 25-------> equation 3

equals equation 2 and equation 3
PB*tan 50=BQ*tan 25--------> equation 4

substitute equation 1 in equation 4

[1000-BQ]*tan 50=BQ*tan 25-----> 1000*tan 50-BQ*tan 50=BQ*tan 25
BQ*[tan 25+tan 50]=1000*tan 50-----> BQ=1000*tan 50/[tan 25+tan 50]
BQ=718.76 ft
PB=1000-718.76-----> PB=281.24 ft
AB=PB*tan 50-----> 281.24*tan 50------> 335.17 ft

the answer is
335.17 ft

8 0
3 years ago
Who knows how to solve this problem ”Surface Area-Prisms”?
Minchanka [31]

Answer: You lay out the 3 demential shape into a net then find the area of the net. There are 2 surfaces that are 81 square feet. and 4 surfaces that are 18 feet. 81 + 81 + 18 + 18 + 18 + 18 = 234.

The surface area is 234 Square Feet. Hope this helps and brainliest is always appreciated. :)


5 0
3 years ago
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If there are 624 calories in 3 servings, how many calories are in 1 serving?
Harman [31]

Answer:

208 calories per serving

Step-by-step explanation:

Divide 624 by 3.

3 0
3 years ago
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Find the x-intercept of the line:
KengaRu [80]
The answer is A because 9x times 0 = 0 and 3y times -6 = -18
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