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Sindrei [870]
3 years ago
11

I need help on this please

Mathematics
1 answer:
ss7ja [257]3 years ago
6 0

Answer:D

Step-by-step explanation:

.708333... so about .71

14+23+14=51

51 divided by 72=~.71

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The long-distance calls made by the employees of a company are normally distributed with a mean of 6.3 minutes and a standard de
Sergio [31]

To solve this problem, we use the formula:

z = (x – u) / s

where z is the z score value which can be obtained from the tables, x is the sample value, u is the mean = 6.3 min, and s is the std dev = 2.2 min

 

at P value = 0.90, the z = 1.28, finding for x:

x = z s + u

x = 1.28 * 2.2 + 6.3

x = 9.116

 

at P value = 1.0, the z = 3.49, finding for x:

x = z s + u

x = 3.49 * 2.2 + 6.3

x = 13.978 ~ 14

 

Therefore the longest 10% calls last about 9.1 minutes to 14 minutes

3 0
3 years ago
6. Meg started her trip with 112 gallons of gas in her car's gas tank. She bought an additional 6 gallons on her trip and arrive
dimaraw [331]

Answer:

i think its 115

Step-by-step explanation:

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4 0
3 years ago
Which of the following is correct?
Brums [2.3K]
C) it is a closed figure made up of straight lines.
6 0
2 years ago
What is 6/13 rounded to the nearest half?
prohojiy [21]
6/13, when turned into a decimal, is equal to 0.4615384615... And so on. That decimal can be rounded to the nearest hundredth to become 0.46.

Is 0.46 closer to 0.5, or 0? When put on a number line, we can see how close it is to 0.5, which is the same as 1/2.

6/13, rounded to the nearest half, is 1/2.
Hope this helped =)
6 0
3 years ago
Read 2 more answers
Help me for 1????????
kvasek [131]
The average score for the entire year is 88.44444, so by rounding down the answer is 88%
5 0
3 years ago
Read 2 more answers
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