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jeyben [28]
3 years ago
6

The question, “How many ways can 4 students be chosen from a class of 30 students?”, is a(n) _____.

Mathematics
2 answers:
Ahat [919]3 years ago
7 0
The answer to your question is A 
OLga [1]3 years ago
5 0

Answer:  Option 'A' is correct.

Step-by-step explanation:

Since we have given that

Total students in a class = 30

Number of students is to be chosen = 4

So, we will use Combination :

<u>As Combination is the collection of the object irrespective of any arrangement.</u>

So, Number of ways to choose 4 students among the 30 students is given by

^{30}C_4\\\\=27405

Hence, Combination is the required answer.

Therefore, Option 'A' is correct.

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forty percent of the cases were monochromatic and the rest were variegated. if 2400 vases were variegated how many were monochro
Pavlova-9 [17]

Answer:

960 were monochromatic

Step-by-step explanation:

2400x.40=960

4 0
3 years ago
Sitting on a park bench, you see a swing that is 100 feet away and a slide that is 80 feet away. The angle between them is 30 de
leva [86]

We are given : Distance of the swing = 100 feet.

Distance of slide = 80 feet.

Angle between swing and slide = 30 degrees.

We need to find the distance between the swing and the slide.

Distance of swing, distance of slide and distance between the swing and the slide form a triangle.

We can apply cosine law to find the distance between the swing and the slide.

c^2 = a^2 +b^2  - 2ab cos C

c^2 = 100^2 +80^2 - 2(100)(80) cos 30°

c^2 = 10000 + 6400 -2* 8000 (\frac{\sqrt{3}} 2)}

c^2 = 16400 - 8000\sqrt{3}

c^2 = 16400 - 13856

c^2 = 2544

c =\sqrt{2544}

c= 50.44

c = 50 feet approximately.

<h3>Therefore, the approximate distance between the swing and the slide is 50 feet.</h3>
5 0
3 years ago
Read 2 more answers
563-273 do you have to regroup
Marizza181 [45]
Yes you do because you cannot subtract 7 from 6.
8 0
3 years ago
Solve the inequality 5y+4 ≤ 22-y and graph the solution set on a number line. Please explain how to do it!
gtnhenbr [62]

Answer:

y≤3

Step-by-step explanation:

5y+4≤22−y

<em>Step 1: Simplify both sides of the inequality.</em>

5y+4≤−y+22

<em>Step 2: Add y to both sides.</em>

5y+4+y≤−y+22+y

6y+4≤22

<em>Step 3: Subtract 4 from both sides.</em>

6y+4−4≤22−4

6y≤18

<em>Step 4: Divide both sides by 6.</em>

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4 0
2 years ago
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How do you find probability
koban [17]

Answer:

Determine a single event with a single outcome. ...

Identify the total number of outcomes that can occur. ...

Divide the number of events by the number of possible outcomes. ...

Determine each event you will calculate. ...

Calculate the probability of each event.

Step-by-step explanation:

CAN I PLS HAVE BRAINLIEST

5 0
3 years ago
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