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expeople1 [14]
2 years ago
15

There are 11 students in your class. In how many ways a group of 4 students will be

Mathematics
2 answers:
sammy [17]2 years ago
7 0

Answer: 10P3=720

Step-by-step explanation:

Jlenok [28]2 years ago
3 0

Answer:

Step-by-step explanation:

If you are always included to lead, that leaves 10 students to choose from.

If all that is important is being selected, then there are 10C3 = 120 ways to choose them.

If each selection has a unique duty, then there are 10P3 = 720 ways to assign them their jobs.

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What is the value of the expression 30n when n=2
iris [78.8K]
Hey there!
Since it's 30n, 30 is the coefficient and it's being multiplied by n.
We plug in n.
30(2) =
60
Hope this helps!
8 0
2 years ago
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Graph y ≥ -x^2 +1 Click on the graph until the correct graph appears.
ser-zykov [4K]

Answer:

Here, I <u>graphed</u> it for you!

3 0
3 years ago
Please help help help
lorasvet [3.4K]

Answer:

6x9+6+9 = 69

Step-by-step explanation:

3 0
2 years ago
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The table shows how many shirts four garment factories made and how long it took to make them. The relationship between the numb
german
If you would like to know the production rate of factory E, you can calculate this using the following steps:

Factory   Number of days   Number of shirts
A             2                            600
B             3                            900
C             4                            1200
D             5                            1500

Factory E can make shirts at the same rate as the first four factories:
600 shirts / 2 days = 300 shirts per day
900 shirts / 3 days = 300 shirts per day
1200 shirts / 4 days = 300 shirts per day
1500 shirts / 5 days = 300 shirts per day

Factory E will make 1800 shirts in 6 days, therefore 1800 / 6 = 300 shirts per day.

The correct result would be:
Factory   Number of days   Number of shirts
E             6                            1800
8 0
3 years ago
Read 2 more answers
Write a possible third degree polynomial with integer coefficient that have zeros: 1 2i, -4. Assume the leading coefficient to b
jasenka [17]

Answer:

The polynomial is:

p(x) = x^3 + 2x^2 - 3x + 20

Step-by-step explanation:

A third degree polynomial can be written in function of it's zeros x_1, x_2, x_3 the following way:

p(x) = a(x - x_1)(x - x_2)(x - x_3)

In which a is the leading coefficient.

Integer coefficient that have zeros: 1+2i, 1-2i, -4

Leading coefficient: 1

So

p(x) = 1(x - (1+2i))(x - (1-2i))(x - (-4))

p(x) = (x - 1 -2i)(x - 1 + 2i)(x + 4)

p(x) = ((x-1)^2 - (2i)^2)(x + 4)

p(x) = (x^2 - 2x + 1 - 4i^2)(x + 4)

Since i^2 = -1

p(x) = (x^2 - 2x + 1 + 4)(x + 4)

p(x) = (x^2 - 2x + 5)(x + 4)

p(x) = x^3 + 4x^2 - 2x^2 - 8x + 5x + 20

p(x) = x^3 + 2x^2 - 3x + 20

3 0
2 years ago
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