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Marina86 [1]
3 years ago
5

Ms. Lunette has 18 students in her class. She wants to send 3 of these students to pick up books for the class.

Mathematics
1 answer:
tigry1 [53]3 years ago
7 0

The number of possible combinations is given by

... C(18, 3) = 18!/(3!(18-3)!) = 18·17·16/(3·2·1) = 816 . . . . possible combinations

_____

There are 18 ways to choose the first one; 17 ways to choose the second one, and 16 ways to choose the 3rd one. The same 3 students can be chosen in any of 3! = 6 different orders, so the product 18·17·16 must be divided by 6 to get the number of possible combinations in which order doesn't matter.

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What is the scale factor of ABC to A DEF?
vampirchik [111]

Answer:

6

Step-by-step explanation:

All sides of triangle EFD have x6 of BAC.

E.g.: BA = 2. ED = 2 x 6 = 12

8 0
2 years ago
The Montanez family is a family of four people. They have used 3,485.78 gallons of water so far this month. They cannot exceed 7
il63 [147K]

Answer:

x ≤ 3764.72

Step-by-step expl anation:

The Montanez family cannot use more than 7250.50 gallons, this means that they can use less than or equal to 7250.50 gallons, this tells you which sign to use.  The variable x can be used to describe how much water they have left to use and then you add 3,485.78 gallons to x.

x + 3485.78 ≤ 7250.50   This inequality means that the amount of water the family has yet to use added to 3485.78 gallons cannot exceed 7250.50 gallons.

Next, you simplify the inequality using the property of inequalities.

x ≤ 7250.50 - 3485.78

x ≤ 3764.72

5 0
3 years ago
Can someone help me
Tatiana [17]
Omg I’m stuck on a question like that and I made another account and posted it there and nobody is answer me
8 0
2 years ago
Read 2 more answers
What's the answer to the problem
zvonat [6]

Answer:

Any Images?

Step-by-step explanation:

3 0
2 years ago
Describe in words where the square root of 50 minus 10 would be plotted on a number line.
Dafna1 [17]

The required value lies Between 6 and 7, but closer to 6. Option C is correct.

Given that,
The square root of 50 minus 10 would be plotted on a number line.

<h3>What is a number line?</h3>

A number line is defined as the number marked on the line calibrated into an equal number of units. For example -1, 0, 1, and so on.

According to the question,
= √[50-10]
= √40
= 6.32
Which is closer to 6.

Thus, the required value lies Between 6 and 7, but closer to 6. Option C is correct.

Learn more about number line here:

brainly.com/question/17683084

#SPJ1

3 0
11 months ago
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