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umka21 [38]
2 years ago
9

In a drawer, there are 3 white socks, 4 black socks, and 2 brown socks. You pick out a sock, replace or, turn pick put a 2nd soc

k. What is the probability that you will pick a brown then black?
A) 12/81


B) 6/81


C) 8/81
Mathematics
1 answer:
slega [8]2 years ago
6 0

I believe the answer is B) 6/81

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The answer would be graph b.
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2 years ago
20 = n/4. Solve for n using reverse operations. Show all work. Your answer​
jok3333 [9.3K]

Answer:

n=80

Step-by-step explanation:

n/4=20

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7 0
3 years ago
Help me solve those show work 3(2a-5)=12-7a, 27=3c-3(6-2c)and 6c-8-2c=-16
posledela
3(2a-5) = 12-7a
6a-15=12-7a
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27=3c-3(6-2c)
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45=9c
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3 0
3 years ago
X is a normally Distributed random variable with a standard deviation of 4.00. Find the mean of X when 64.8% of the area lies to
Cerrena [4.2K]

Answer:

7

Step-by-step explanation:

σ = 4 ; μ =?

8.52 to the left of X

.

P(X < 8.52) = 64.8%

P(X < 8.52) = 0.648

Using the Z relation :

(x - μ) / σ

P(Z < (8.52 - μ) / 4)) = 0.648

The Z value of 0.648 of the lower tail is equal to 0.38 (Z probability calculator)

Z = 8.52 - μ / 4

0.38 = 8.52 - μ / 4

0.38 * 4 = 8.52 - μ

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μ = 8.52 - 1.52

μ = 7

5 0
3 years ago
A large rectangular office measures 9 yards by 15 yards. What is the area of the office?
vova2212 [387]

Answer:

135

Step-by-step explanation: 9x15=135

4 0
2 years ago
Read 2 more answers
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