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2 years ago

Which graph represents the solution of the system of inequalities?

Mathematics

1 answer:

In-s [12.5K]2 years ago

3 0

You need to rewrite the first equation to solve for y to get y >1+3x

Then graphing the two equations, the bottom right becomes the correct answer.

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Find the mean of the data set 31,31,22,28,23?

Lina20 [59]

The mean is 27
How you do this is you add all the numbers together even the ones that are duplicated like in this case 31. Now add em all up which equals 135. Now you take the number that they equal up to and divide by how many numbers are in the set of data in this case it is 5. After dividing you get 27.
I hope this helps!

3 0

3 years ago

Read 2 more answers

A random sample of 85 group leaders, supervisors, and similar personnel revealed that a person spent an average 6.5 years on the

strojnjashka [21]

Answer:

95% of confidence interval for the Population

( 6.1386 , 6.8614)

Step-by-step explanation:

Step( i ):-

Given random sample size 'n' =85

Mean of the sample size x⁻ = 6.5 years

Standard deviation of Population = 1.7 years

Level of significance = 0.95 or 0.05

Step(ii):-

95% of confidence interval for the Population is determined by

$(x^{-} - Z_{0.05} \frac{S.D}{\sqrt{n} } , x^{-} + Z_{0.05} \frac{S.D}{\sqrt{n} })$

$(6.5 - 1.96\frac{1.7}{\sqrt{85} } , 6.5 + 1.96 \frac{1.7}{\sqrt{85} })$

( 6.5 - 0.3614 , 6.5 + 0.3614 )

( 6.1386 , 6.8614)

Conclusion:-

95% of confidence interval for the Population

( 6.1386 , 6.8614)

8 0

3 years ago

What is the value of x? round the answer to the nearest tenth. the diagram is not drawn to scale.

Zepler [3.9K]

It would also be 60°
B

8 0

3 years ago

Read 2 more answers

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Citrus2011 [14]

Answer:

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Step-by-step explanation:

8 0

2 years ago

Read 2 more answers

The median of data is 43.5 and the range is 35 what’s the missing value explain.

Ratling [72]

The minimum and maximum of the set alone is 25 and 60. The range of that 35. So, the number is not less than or more than 25 or 60.
The set in order:
25, 36, 48, 52, 60
The median is 48, so the number has to be less than 48. Let's see if the number may be less than 36.
36+48
84
42
So, the number is right between 36 and 48.
43.5×2
87
Let's subtract 48 from that
87-48
39
So, the mssing value is 39. Let's check.
25, 36, 39, 48, 52, 60
48+39
87÷2
43.5
So the missing value is 39.

6 0

3 years ago