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PIT_PIT [208]
3 years ago
9

A red marble is selected at random from a bag containing 2 blues and 9 red marbles and is not replaced.the probability that a se

cond marble selected will also be red is
Mathematics
2 answers:
meriva3 years ago
3 0

Answer:

 So the probability of drawing a second red marble is 8 out 10 or 0.8.

Step-by-step explanation:

It seems to me that if one red marble is already gone, there are 8 red marbles left out of a total of 10 marbles.

So the probability of drawing a second red marble is 8 out 10 or 0.8.

liraira [26]3 years ago
3 0

Answer:

8/10 or 4/5 or 0.8

Step-by-step explanation:

since one red marble is already taken, there are only eight remaining now and the total number of marbles are ten now. So you have to divide.

Therefore, the probability is 8/10 or 4/5 or 0.8.

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Which is the equation for ---
ratelena [41]
Equation of the line: 
y=mx+b
Ordinate at the origin (where the line cut the y-axis): b=1

B=(-5,5)=(xb,yb)→xb=-5, yb=5
C=(0,1)=(xc,yc)→xc=0, yc=1
m=(yc-yb)/(xc-xb)
m=(1-5)/(0-(-5))
m=(-4)/(0+5)
m=(-4)/(5)
m=-(4/5)

y=mx+b
y=-(4/5)x+1
Multiplying the equation by 5:
5[y=-(4/5)x+1]
5y=-4x+5
Adding 4x both sides of the equation:
5y+4x=-4x+5+4x
4x+5y=5

Answer: The equation for BC is: Third option 4x+5y=5
7 0
3 years ago
Only answer if you it! Help me please!
Svetradugi [14.3K]
B. They are both proportionate, but dont have the same dimensions as one another
6 0
3 years ago
Read 2 more answers
An HR director numbered employees 1 through 50 for an extra vacation day contest. What is the probability that the HR director w
forsale [732]

Answer:

The probability that the HR director will select an employee who is not a multiple of 13 is \frac{47}{50}

Step-by-step explanation:

* <em>Lets explain how to solve the problem</em>

- The probability of an event is the measure of the chance that the

  event will occur

- The probability of an event A is the number of ways that event A can

 occur divided by the total number of possible outcomes

- If P(A) is the probability of event A,  is the probability that the event A

 does not occur is 1 - P(A)

* <em>Lets solve the problem</em>

- An HR director numbered employees 1 through 50 for an extra

 vacation day contest

∴ There are 50 employees

- The HR director will select an employee

- We need to find the probability of select an employees who is not

 multiple of 13

* At first lets find the multiples of 13

∵ 13 × 1 = 13

∵ 13 × 2 = 26

∵ 13 × 3 = 39

∴ The multiples of 13 from 1 to 50 are 13 , 26 , 39

∵ There are 3 multiples of 13

∵ There are 50 numbers

∵ Probability of multiple of 13 = \frac{3}{50}

∵ Probability of not multiple of 13 = 1 - P(multiple of 13)

∴ Probability of not multiple of 13 = 1-\frac{3}{50}

∴ Probability of not multiple of 13 = \frac{47}{50}

* The probability that the HR director will select an employee who is

  not a multiple of 13 is \frac{47}{50}

4 0
3 years ago
The number 46 comma 462 comma 555 46,462,555 rounded to the nearest hundred thousand is  
algol [13]
The answer is 46,500,000

the hundred thousandth starts at the second 4

hope this helped :)
4 0
3 years ago
Help please this confusion
RoseWind [281]
I believe the answer is 1330
4 0
3 years ago
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