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svp [43]
3 years ago
13

A professor must randomly select 4 students to participate in a mock debate. There are 20 students in his class. In how many dif

ferent ways can these students be selected, if the order of selection does not matter?
Mathematics
2 answers:
lina2011 [118]3 years ago
4 0

There are 4845 different ways he could chose the students.

Aneli [31]3 years ago
3 0
The equation we used in this problem is the combination of probability. The formula used is "nCr<span> = </span>n<span>! / </span>r! * (n<span> - </span>r<span>)!" where, n is all 20 students and r is the 4 students. Substituting the numbers we get 4845 ways.</span>
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iris [78.8K]
Answer:

58+4=62 Sienna’s height is 62 inches

Explanation:

Sienna’s height is 62 inches because Georgia’s height is 58 inches and she is shorter by 4 inches which means you have to add 58+4 which would equal 62.
3 0
3 years ago
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What is the value of y?<br><br><br> A. y = -1<br><br> B. y = 0<br><br> C. y = 1<br><br> D. y = 3
OverLord2011 [107]

Step-by-step explanation:

The centroid divides the length of each median in 2:1 ratio.

The length of the part between the vertex and the centroid is twice the length between the centroid and the mid-point of the opposite side.

In case of median KM,

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5y+3= 2y +6

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6 0
3 years ago
What is the interquartile range for the data set? <br> 4 , 7, 7, 3, 5, 2, 6, 7, 9
valina [46]
Population size:9
Lower quartile (xL): 3.5
Upper quartile (xU): 7

<span>Interquartile range (xU-xL): 3.5</span>
4 0
4 years ago
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A shirt with the cost price $80 was discounted by 10% what is the amount of the discount and what is the discounted price of the
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Answer:

72.00

Step-by-step explanation:

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7 0
3 years ago
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levacccp [35]
The price of the new car is 32 998.00 dollars
=> he made a down payment  of <span>4,200.00 dollars
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=> 2702 / 5 years = 540.4 dollars is the APR.
7 0
3 years ago
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