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Zolol [24]
3 years ago
10

A box contains 4 red marbles, 8 blue marbles, and 2 white marbles. The marbles are selected at random, one at a time, and are no

t replaced. What is the probability of selecting a blue then a blue then a white marble?
Mathematics
2 answers:
vlada-n [284]3 years ago
8 0

Answer:

64

Step-by-step explanation:

multiply 4 and 8 and 2 together to get 64

marshall27 [118]3 years ago
4 0

Answer:

4/343

Step-by-step explanation:

Total marbles is 4 + 8 + 2 = 14 marbles

Probability of getting blue: 4/7

Probability of getting white: 1/7

So you do 4/7 x 1/7 x 1/7 =

4/343

Hope that helps!

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Can anyone give me a geometric sequence will give brainlinest and need sequence of 6
snow_lady [41]

Answer:

3, 6, 9, 12, 15, 18

Step-by-step explanation:

If you count by threes you can make a Geometric Sequence of 6.

Final answer: 3, 6, 9, 12, 15, 18.

3 0
3 years ago
Mariana solved the equation below. Identify her ERROR and EXPLAIN what she did wrong. -3(2x-4)=-12 -6x-12=-12 -6x=0 x=0
nydimaria [60]

Answer:

Her error was multiplying -3 and -4 which gives +12 but she wrote -12 instead

Step-by-step explanation:

Mariana workings:

-3(2x - 4) = -12

-6x - 12 = -12

Her error was multiplying -3 and -4 which gives +12 but she wrote -12 instead

-6x = 0

x=0

Correct workings:

-3(2x - 4) = -12

-6x + 12 = - 12

-6x = -12 - 12

-6x = -24

x = -24/-6

x = 4

8 0
3 years ago
Please help! Question above
frez [133]

Answer:

It's the first one. (m  + n - 1) sqrt p

Step-by-step explanation:

We can combine m sqrt p and n sqrt p, resulting in m + n, and combine - sqrt p to become (m + n - 1)sqrt p

3 0
3 years ago
Solve by using square root: <br> 4(x-1)^2+2=10
Scilla [17]
4(x-1)^2+2=10\\\\4(x^2-2x+1)+2-10=0\\\\4 x^2-8x+4+2-10=0\\\\4 x^2-8x-4=0\ \ / :4\\\\x^2-2x-1=0\\\\x_{1}=\frac{-b-\sqrt{b^2-4ac}}{2a}=\frac{2-\sqrt{ (-2)^2-4*1*(-1)}}{2 }=\frac{2-\sqrt{ 8}}{2 }=\frac{2- \sqrt{ 4*2}}{2 }=\\\\=\frac{2-\sqrt{ 8}}{2 }=\frac{2(1- \sqrt{ 2})}{2 }=1- \sqrt{ 2}\\\\x_{2}=\frac{-b+\sqrt{b^2-4ac}}{2a}=\frac{2+\sqrt{ (-2)^2-4*1*(-1)}}{2 }=\frac{2(1+ \sqrt{ 2})}{2 }=1+ \sqrt{ 2}

Answer:\ x=1- \sqrt{2}\ \ or\ \ x= 1+ \sqrt{ 2}


3 0
3 years ago
Read 2 more answers
A bag contains 4 red marbles, 7 blue marbles, and 6 green marbles. What is the probability of choosing a blue marble when one ma
Korvikt [17]
Answer: 7/17
So there are 7 blue marbles and there are 17 marbles in total.
That means the probability of picking one blue marble is 7/17

6 0
3 years ago
Read 2 more answers
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