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tiny-mole [99]
3 years ago
10

You choose a tile at random from a bag containing 4 A’s, 3 B’s, and 5 C’s. You replace the first tile in the bad and then choose

again. Find P(B and B)
Mathematics
1 answer:
shtirl [24]3 years ago
3 0

Answer:

P(B and B) = 1/9

Step-by-step explanation:

There are 4+3+5 = 12 tiles in total

The probability of selecting a B would be 4/12=1/3

When you are replacing a B tile, planning to pick a B tile again, the total tile count doesn't change. Therefore, because the two events are independent, their probabilities are multiplied and so P(B and B) = P(B) * P(B) = 1/3 * 1/3 = 1/9

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X^2+4x+4
Now you have to find the factors of 4 which is 1,4 and 2,2
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3 years ago
Sandy is working with a carpenter to frame a house. They are using 8-foot-long boards, but each board must be cut to be 94.6 inc
tankabanditka [31]

Answer: 1.4 inches

Step-by-step explanation:

8 * 12 = 96

96 - 94.6 = 1.4

8 0
3 years ago
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V ( x ) =12-2x-5 when x= -2,0,5 solve step by step
BlackZzzverrR [31]

v(-2) = 11,  v(0) = 7,  v(5) = -3.

hope this helps! :)

v(x) = 12 - 2x - 5\\v(-2) = 12 - 2(-2) - 5\\v(-2) = 12 + 4 - 5\\v(-2) = 11\\-----------------------------\\v(0) = 12 - 2(0) - 5\\v(0) = 12 - 0 -5\\v(0) = 7\\-----------------------------\\v(5) = 12 - 2(5) - 5\\v(5) = 12 - 10 - 5\\v(5) = -3

5 0
3 years ago
Mr.Q's class is having a giveaway where his students can receive 100 classroom credits. He will pull names out of a hat and sele
Sladkaya [172]

Answer:

1/1560

Step-by-step explanation:

The chance of you winning is 1/40, since there are 40 students and you are one of those students. Since, you cannot win again once you win once, you are eliminated. This leaves us with 39 people left. The chances of your friend being chosen out of the 39 people left is 1/39. Now you must multiply 1/40 and 1/39. After multiplying, you get 1/1560.

7 0
3 years ago
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masha68 [24]

Answer:

Puppy A weighs 8 pounds, which is about 25% of its adult weight. What will be the adult weight of Puppy A? Puppy B weighs 8 pounds, which is about 75% of its adult weight. What will be the adult weight of Puppy B?

Step-by-step explanation:

6 0
3 years ago
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