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Mice21 [21]
2 years ago
13

Please help me I will give brainliest

Mathematics
1 answer:
romanna [79]2 years ago
4 0

Answer:

1/9 is c -2/12 is a -0.1 is b

Step-by-step explanation:

PLEASE PUT IN THE ANSWER THEN GIVE BRAINLEIST

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A bag contains 6 red balls and 5 black balls . Two balls are picked , one after the other . Find the probability that :
Kaylis [27]

Answer:

<u>There are:</u>

  • 6 red balls - R
  • 5 black balls - B
  • Total number = 11 balls
<h3>A. Without replacement</h3>

i. <u>Two blacks </u>

  • P(BB) = 5/11*4/10 = 2/11

ii. <u>The first is black</u>

  • P(B) = 5/11

or, alternatively

  • P(BR or BB) = 5/11*6/10 + 2/11 = 3/11 + 2/11 = 5/11

iii. <u>Both are of same colour</u>

  • P(BB or RR) = 2/11 + 6/11*5/10 = 2/11 + 3/11 = 5/11
<h3>B. With replacement</h3>

i. <u>Two blacks </u>

  • P(BB) = 5/11*5/11 = 25/121

ii. <u>The first is black</u>

  • P(B) = 5/11

or alternatively

  • P(BR or BB) = 5/11*6/11 + 25/121 = 30/121 + 25/121 = 55/121 = 5/11

iii. <u>Both are of same colour</u>

  • P(BB or RR) = 5/11*5/11 + 6/11*6/11 = 25/121 + 36/121 = 61/121
7 0
3 years ago
A number b minus 4.2 is less than −7.5
Kruka [31]
B - 4.2 < -7.5
subtract b and 4.2 
less then sign is <
then <-7.5
5 0
3 years ago
Read 2 more answers
−8x+6−2=−12<br> what is x?
zubka84 [21]

Answer: x=2

Step-by-step explanation:

have a good day! :)

plz give me brainliest

4 0
3 years ago
Read 2 more answers
I need help with 10,11,12
pshichka [43]
10. 50 is roughly around ~16% of 300. (16% is 50.1)

11. 35% of 150 would be 52.5

12. 80 is 200% of 40

3 0
3 years ago
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If the cone itself is 7 inches long, and the radius of the cone is 2 inches, what is the entire volume of ice cream in the cone
stepladder [879]
So if you use the volume of 7 inch and 2 inch your value is 14 volume
4 0
2 years ago
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