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jonny [76]
2 years ago
5

8) What is the slope of a horizontal line?​

Mathematics
2 answers:
Brrunno [24]2 years ago
7 0

the answer is a 0 slope since both points on the line are at the same plane

Amanda [17]2 years ago
7 0

Answer:

0

Step-by-step explanation:

horizontal lines =0 and vertical lines are undefined

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A survey about phone service has a margin of error of 5%. Out of 150 people surveyed, 103 said that they were pleased with their
lapo4ka [179]

Answer:

The range of the number of people that are satisfied is option A. 46,968 to 51,912 customers.

Step-by-step explanation:

Hi, to solve this problem you need to calculate the total number of customers that are pleased with the service, based on the 150 people sample.

so:

(72,000 x 103 )÷150 = 49,440

The next step is to calculate the 5% margin of error of that result.

49,440 x 0.05= 2,472

Finally, to obtain the range you need to add and subtract the margin to the total number of customers that are pleased with the service.

49,440-2,472= 46,968

49,440 + 2,472=51,912

So, the range of the number of people that are satisfied is option A. 46,968 to 51,912 customers.

8 0
2 years ago
A compact disc is designed to last an average of 4 years with a standard deviation of 0.9 years. What is the probability that a
jarptica [38.1K]
 <span>3 is 1.0 below the mean. That is 1.0 / 0.9, or 1.1111... standard deviations below the mean. 
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4 0
3 years ago
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erastova [34]
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2 years ago
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IgorC [24]

Answer:

I believe the answer is 10 units.

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3 years ago
Indicate an interval that is decreasing, and explain your reasoning.
leva [86]

Answer:

(-1,1) because -1 and 1 are not inclusive

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there is another one, (3,5)

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2 years ago
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