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azamat
2 years ago
7

An experiment involves 30 participants. From these, a group of 4 participants is to be tested under a special condition. How man

y groups of 4 participants are possible?
Mathematics
1 answer:
zheka24 [161]2 years ago
6 0

Answer:

7

Step-by-step explanation:

7*4=28 which is the closest u can get to 30 with out going past it

You might be interested in
The double number line shows the amount of time a hen needs to lay 1 egg.
Scorpion4ik [409]

I realize the double number line in this exercise can be as shown in the attached image, in that case, the table, correctly completed is:

Eggs      Time (hours)

 3                   <u>75</u>

 <u>4</u>                  100

 12                <u>300</u>

Method to complete the table.

First, you must see the double number line (attached image), in this we identify a hen needs 25 hours to lay 1 egg, by this reason, to identify the time required for a certain number of eggs, just multiply the number of eggs by 25 (the number of hours shown on the double number line), then:

  • 3 * 25 = <u>75</u>
  • 12 * 25 = <u>300</u>

To calculate the number of eggs taking into account the time, you must divide the hours by 25:

  • 100 / 25 = <u>4</u>

In this way, <u><em>you can check that the answers are 75, 4, and 300 respectively, to complete the table in the correct form</em></u>.

You can review more exercises and test your new knowledge about the double number line at the following link: brainly.com/question/13553589?referrer=searchResults

8 0
2 years ago
G(x) = x2 − 4, find g(5).
oksano4ka [1.4K]

Answer:

6

Step-by-step explanation:

g(x) = x2 - 4

g(5)= 5(2) - 4

g(5)= 10 - 4

g(5)= 6

Have a great day

6 0
3 years ago
What is the number for PI?​
DerKrebs [107]
3.14

This is typically what you would use but there are several other numbers after 3.14
3 0
3 years ago
Drag each tile to the correct box.
Tatiana [17]

Answer:

money market, savings account, and term CD.

Step-by-step explanation:

2100×.12×3=1344 2800×.04×3=2464 and 2520x.05×3=2142

8 0
2 years ago
MINING A mine produces 42.5 tons of coal per hour. How much coal will the mine produce in 9.5 hours?
vladimir1956 [14]

Given

MINING A mine produces 42.5 tons of coal per hour.

Find out the how much coal will the mine produce in 9.5 hours.

To proof

As given in the question

A mine produces 42.5 tons of coal per hour i.e in the 1 hour mine produces the 42.5 tons .

Let us assume that the coal produce in the 9.5 hours be x.

than the equation becomes

x = 9.5 × 42.5

x =  403 . 75 tons

 403 . 75 tons coal will the mine produces in the 9.5 hours.

Hence proved








7 0
3 years ago
Read 2 more answers
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