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HACTEHA [7]
3 years ago
8

I need help with this question...

Mathematics
1 answer:
azamat3 years ago
4 0
There are 2 ways to get 6 by withdrawing 3 counters:

1,2 and 3

and 2, 2 and 2.

Probability ( drawing 1 , 2 and 3 in that order) = 2/9 * 3/8 * 4/7 = 24/504 = 1/21

there are 6 ways to draw any combination of 1,2 and 3 so this gives

 6 * 1/21 =  2/7 

probability of drawing  2,2 and 2  =  3/9 * 2/8 * 1/7 = 1/84

so the answer is 2/7 + 1/84  =  25/84 
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All the events in the sample space that are not part of the specified event are called
natali 33 [55]

Answer:

All the events in the sample space that are not are the part of the specified event are All called the complement of the event.

Step-by-step explanation:

Suppose tossing a coin, the sample space here is {H,T}.

Now, if  the event is getting a head ,

so here T is not the part of the sample space and is called as complement of the event.

Therefore, all the events in the sample space that are not are the part of the specified event are All called the complement of the event.

7 0
3 years ago
What is the measure of an angle at the centre whose radius is equal to arc length?​
klasskru [66]

Answer:

radian

Step-by-step explanation:

A radian is a unit of angle that is equal to the angle created at the center of a circle whose arc is equal in length to the radius.

<h2><u><em>Hope it helps!!!</em></u></h2><h2><u><em>Brainliest pls!!!</em></u></h2>
4 0
3 years ago
The probability that a plant is edible is 4/5 and the probability that a plant grows at a constant rate and is edible is 14/19.
miskamm [114]

Answer: Probability that a plant grows at a constant rate, given it is edible is given by \frac{35}{38}.

Step-by-step explanation:

Let B be an event that getting a plant grows at a constant rate.

Since we have given that

The probability that a plant is edible is given by

P(A)=\frac{4}{5}

The probability that a plant grows at a constant rate and is edible is given by

P(A\cap B)=\frac{14}{19}

We will use "Conditional probability ", i.e.

P(A\mid B)=\frac{P(A\cap B)}{P(A)}

P(A\mid B)=\frac{\frac{14}{19}}{\frac{4}{5}}\\\\P(A\mid B)=\frac{14\times 5}{19\times 4}\\\\P(A\mid B)=\frac{70}{76}\\\\P(A\mid B)=\frac{35}{38}

Hence, Probability that a plant grows at a constant rate, given it is edible is given by \frac{35}{38}.

8 0
4 years ago
Guys I really need help plsss
timama [110]

Answer:

x = 3

Step-by-step explanation:

Multiply the first equation by -1, then add it to second equation.

 2x+9y = -12

-2x-7y = 8

-------------------

 2y = -4

Solve for y

2y = -4

y = -2

Plug value of y into one of the equations and solve for x

2x + 9(-2) = -12

2x  = 6

x = 3

5 0
3 years ago
Which addition does the model below represent?<br> 08+(-3)<br> 2+(-3)<br> 5+3<br> 5+(-3)
Elden [556K]
The answer 2+(-3) well I just need to add more so don’t pay attention to this
7 0
4 years ago
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