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JulijaS [17]
3 years ago
6

The probability of rolling a 3 with a single six-sided die is 1/6. The probability of rolling

Mathematics
1 answer:
Setler [38]3 years ago
6 0

Answer:

3625

Step-by-step explanation:

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The sum of a positive number and 22 is 455 times the reciprocal of the number find the number
dalvyx [7]

Answer:

13

Step-by-step explanation:

Let the number be x.

ATQ x+22=455/x. x^2+22x=455. x=-35 or 13. Since x is positive, x=13

3 0
3 years ago
Prove that 3:8 is equivalent to 12:32
Andrei [34K]
3*4=12
8*4=32
It is a ratio. 
6 0
3 years ago
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What is the solution to (4/2)4 + (1 + 3)?
julsineya [31]
I think it may be 12
4 0
3 years ago
A banks loan officer rates applicants for credit. The ratings are normally distributed with a mean of 200 and a standard deviati
Alona [7]

Answer:

2.87%

Step-by-step explanation:

We have the following information:

mean (m) = 200

standard deviation (sd) = 50

sample size = n = 40

the probability that their mean is above 21.5 is determined as follows:

P (x> 21.5) = P [(x - m) / (sd / n ^ (1/2))> (21.5 - 200) / (50/40 ^ (1/2))]

P (x> 21.5) = P (z> -22.57)

this value is very strange, therefore I suggest that it is not 21.5 but 215, therefore it would be:

P (x> 215) = P [(x - m) / (sd / n ^ (1/2))> (215 - 200) / (50/40 ^ (1/2))]

P (x> 215) = P (z> 1.897)

P (x> 215) = 1 - P (z <1.897)

We look for this value in the attached table of z and we have to:

P (x> 215) = 1 - 0.9713 (attached table)

P (x> 215) =.0287

Therefore the probability is approximately 2.87%

4 0
3 years ago
Find the area, a rectangle with a length of 4 cm and a width of 2.5 cm
Brums [2.3K]

Answer:

10

Step-by-step explanation:

4x2.5=10CM2

the area of a rectangular =width multiply its length

5 0
1 year ago
Read 2 more answers
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