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iogann1982 [59]
2 years ago
12

What is the mean of a discrete random variable?

Mathematics
1 answer:
Hoochie [10]2 years ago
4 0

Answer:

Discrete probability distribution

Step-by-step explanation:

A weighted average <em>of</em><em> </em><em>the</em><em> </em><em>possible</em> values that random a valuable can take

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Factor completely by grouping: 6x² + 2x + 9x +3 <br> is
masha68 [24]

Answer:

(2x+3)(x+1)

Step-by-step explanation:

6x² + 2x + 9x +3

(6x² + 2x) + (9x +3)

2x (x+1) + 3 (x+1)

(2x+3)(x+1)

8 0
3 years ago
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Which of the following systems of inequalities represents the graph?
mixer [17]

Answer:

Option D.

Step-by-step explanation:

Consider the below figure attached with this question.

If a line passes through two points (x_1,y_1) and (x_2,y_2), then the equation of line is

y-y_1=\frac{y_2-y_1}{x_2-x_1}(x-x_1)

From the below figure it is clear that the a solid line passes through the points (-2,0) and (0,4). So, the equation of related line is

y-0=\frac{4-0}{0-(-2)}(x-(-2))

y=2(x+2)

y=2x+4

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All area above the solid line is shaded. It means the sign of inequality is ≥.

-2x+y\geq 4

From the below figure it is clear that the a dashed line passes through the points (2,0) and (0,2). So, the equation of related line is

y-0=\frac{2-0}{0-(2)}(x-(2))

y=-1(x-2)

y=-x+2

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All area below the dashed line is shaded. It means the sign of inequality is <.

x+y

System of inequality is

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x+y

Therefore, the correct option is D.

5 0
3 years ago
Cómo se escribe el número 90 en egipcio
dmitriy555 [2]
If you're talking about Egyptian, you have to put 9 "ten" symbols on the paper and you get 90.
The "ten" symbol looks like a tiny arch.
7 0
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ira [324]

Answer:  -6

Step-by-step explanation:

i took the test my guy

7 0
3 years ago
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Greeley [361]
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-10n - 2n² + 16n + 6n²
4n² + 6n
7 0
2 years ago
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