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2 years ago

10

Một hộp có 10 sản phẩm, trong đó có 4 phế phẩm. Lấy ngẫu nhiên 2 sản phẩm từ hộp để kiểm tra. lập bảng phân phối xác suất của số

phế phẩm lấy được

1 answer:

Free_Kalibri [48]2 years ago

3 0

Tienes una versión en español para poder entender la pregunta?

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A<br> B<br> C<br> D<br> Help me out

aleksklad [387]

Answer:

2x^2 + 3/2x -5

Step-by-step explanation:

f(x) = x/2 -2

g(x) = 2x^2 +x -3

f(x)+ g(x) = x/2 -2+ 2x^2 +x -3

Combine like terms

= 2x^2 + 3/2x -5

6 0

2 years ago

On the day that a certain celebrity proposes marriage, 252525 people know about it. Each day afterward, the number of people who

Serhud [2]

Answer:

A

Step-by-step explanation:

The graphs are attached.

First of all, the day proposal goes out, 25 people know, so the initial condition is y = 25 at x = 0.

Hence, graph would start at y = 25.

Looking at the graphs, we can eliminate B and D immediately because they start at 50.

Now, it says every day, this number (y) triples, so 1 day after, it would be:

25 * 3 = 75

So, the graph would show x = 1 and y = 75

We can eliminate "C" as it doesn't show 75 at x = 1.

And we look at A and it is correct.

So,

A is the graph of the situation represented.

6 0

3 years ago

Read 2 more answers

Which one is greater 10 squared or 22/7

GenaCL600 [577]

Answer:

<em>(</em><em>2</em><em>2</em><em>/</em><em>7</em><em>)</em><em>²</em>

<em>5</em><em>7</em><em>6</em><em>/</em><em>4</em><em>9</em>

<em>is</em><em> </em><em>your</em><em> </em><em>answer</em><em> </em><em>hope</em><em> </em><em>it</em><em>'s</em><em> help</em><em> u</em>

3 0

3 years ago

Determine the measure of an interior angle of the named regular polygon. If a side of the polygon is extended, determine the sup

ladessa [460]

Answer:

A) Each interior angle of the Regular Hexagon = 120°

B)The measure of the supplementary angle of an interior angle is 60°

Step-by-step explanation:

Regular Hexagon : A 6 sided polygon which has all 6 interior angles as EQUAL is called a regular hexagon.

So, here are 6 interior angles of the hexagon are equal.

Also, Sum of all interior angles of an hexagon = 720°

Let us assume the each angle of the hexagon = m

⇒ m + m + m + m + m + m = 720°

or, 6 m = 720°

or, m = 720° / 6 = 120°

⇒ Each interior angle of the Regular Hexagon = 120°

Now, a side is extended to form an exterior angle.

Let us assume the measure of that exterior angle = k

⇒ k + m = 180 ° ( as k and m are SUPPLEMENTARY ANGLES)

or, k = 180 - 120 = 60 °

or, k = 60 °

Hence, the measure of the supplementary angle of an interior angle is 60°

6 0

2 years ago

Pls I need help ASAP

Shtirlitz [24]

Answer:

2x+12=22

Step-by-step explanation:

the side we don't know is x and there are 2 and there are 2 lengths the same in a rectangle. we know one of them and it is 6 so we do 6 x 2 which is 12.

3 0

2 years ago