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katovenus [111]
3 years ago
15

There are 20 students on the school's student council. A special homecoming dance committee is to be formed by randomly selectin

g 6 students from student council. How many possible committees can be formed? 720 38,760 4,651,200 27,907,200
Mathematics
2 answers:
Firdavs [7]3 years ago
8 0

Answer: 38,760

Step-by-step explanation:

Given: Total number of students = 20

The number of students selected from student council= 6

The number of  possible committees can be formed will be given by using combinations , we get

^{20}C_6=\frac{20!}{6!(20-6)!}\\\\=\frac{20\cdot19\cdot18\cdot17\cdot16\cdot15\cdot14!}{6!14!}=38,760

Hence, The number of  possible committees can be formed= 38,760

Xelga [282]3 years ago
5 0
It's B my dude.
38,760 final answer its lit.
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Answer: 3 seconds

Step-by-step explanation:

Hi, the correct equation is d (t) = 144- 16 t²

So, to answer this question we have to analyze the information given:

When the car reaches the ground the distance, d (t) of the car from the ground is 0.

0 = 144- 16 t²

Solving for t:

16 t² =144

t²=144/16

t²= 9

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Feel free to ask for more if needed or if you did not understand something.  

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On a drawing of a model airplane, the scale used is 1 in.:3 ft. How many feet would 4.5 inches represent?
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Step-by-step explanation:

6 0
4 years ago
Use the number line below, where RS = 9y +3, ST = 3y + 4, and RT = 17y - 33.
zavuch27 [327]

Answer:

R___S___T

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<u>Or</u><u> </u><u>;</u> RT=RS+ST =75+28= 103

<h3><u>So</u><u>;</u></h3><h3>a. <u>Ans;</u> y=8</h3>

<h3>b. <u>Ans;</u> RS= 75 , ST = 28 , RT = 103</h3>

I hope I helped you^_^

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