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Gala2k [10]
3 years ago
11

A class has 29 students. In how many different ways can four students form a group for an​ activity? (Assume the order of the st

udents is not​ important.)
Mathematics
1 answer:
loris [4]3 years ago
3 0

Answer:

7.25

Step-by-step explanation:

29 divided by 4

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the highest possible score on an entrance exam is 800 points. what scores are between 80% to 90% of the highest possible score?
garik1379 [7]

Answer: 640-720

Step-by-step explanation:

5 0
3 years ago
Let x be normal distribution with mean 70 and standard deviation 2. given the following probability, p (x < a) = 0.9147, find
lapo4ka [179]

The value of a is 72.74.

<h3>What is Probability ?</h3>

Probability is the study of likeliness of an event to happen.

It is given that

The mean \rm \mu of the distribution is 70

Standard deviation \rm \sigma  is 2

p( x<a) = 0.9147

a = ?

From Z table

For p ( p < 0.9147) , z = 1.37

\rm Z = \dfrac { X - \mu}{ \sigma}

\rm \rm 1.37 = \dfrac { a - 70}{ 2}

a = 70+ 2*1.37

a = 72.74

Therefore the value of a is 72.74.

To know more about Probability

brainly.com/question/11234923

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6 0
2 years ago
The (T) total number of dollars in (1) five-dollar bills and (t) ten-dollar bills is:
OlgaM077 [116]

Answer:

Step-by-step explanation:

5 0
3 years ago
Plsss help me graph this!!! Attached is the question
e-lub [12.9K]

The graph is a straight line graph with a slope of -1/2

Equation of a line in point-slope form

The equation of a line in point slope form is expressed as:

y - y₁ = m(x - x₁)

Given the following parameters

Point = (-2, 3)

Slope = -1/2

Substitute the given parameters into the formula

y-3 = -1/2(x-(-2))

y-3 = -1/2(x+2)

Write in slope-intercept form

2(y-3) = -(x+2)

2y-2(3) = -x -2

2y - 6 = -x -2

2y = -x + 4

y = -1/2x + 2

The graph of the equation is as shown below

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4 0
1 year ago
Explain text functions, count, countif and averageif functions in own words. Looking for some original content.
Lilit [14]

Answer:

count: Sum up a pre-set interval of values in excel cells.

countif: sum up a pre-set interval of values according to certain rules determined by the user.

averageif: sum the values in cells and the divides the result by the total of cells considered in the function.

Step-by-step explanation:

count: Sum up a pre-set interval of values in excel cells.

countif: sum up a pre-set interval of values according to certain rules determined by the user.

averageif: sum the values in cells and the divides the result by the total of cells considered in the function.

3 0
3 years ago
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