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lana66690 [7]
3 years ago
14

Correct and best explained answer gets brainliest.

Mathematics
1 answer:
Oduvanchick [21]3 years ago
4 0
The answer is b. okay
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Please help explain this!!
Hoochie [10]

Polynomial:

an expression of more than two algebraic terms, especially the sum of several terms that contain different powers of the same variable or variables

-Hope this helped!!~~ <3

3 0
3 years ago
Solve the system of linear equations. separate the x- and y- values with a coma. -9x+2y=-7
Iteru [2.4K]
Y = 1, x = 1 hope this helps!
5 0
3 years ago
3 years ago, the residents of Planet X found a black hole leading to another galaxy. Since then, they have been leaving Planet X
Llana [10]

Answer:

A total of 360 residents left Planet X in the past 3 years.

Step-by-step explanation:

120 are the residents per year and the 3 represents the years so when you multiply them it would make how many residents that left Planet X in 3 years.

8 0
2 years ago
Read 2 more answers
What is the percent increase if your salary went from $85 to $100 per week? Round your answer to the nearest percent, if necessa
slavikrds [6]
% increase  = 100 - 85
                        ---------     *  100
                          85

                  =   17.65 
                  = 18 % to nearest per cent
3 0
3 years ago
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A statistician chooses 27 randomly selected dates, and when examining the occupancy records of a particular motel for those date
Anni [7]

Answer:

Confidence interval variance [21.297 ; 64.493]

Confidence interval standard deviation;

4.615, 8.031

Step-by-step explanation:

Given :

Variance, s² = 34.34

Standard deviation, s = 5.86

Sample size, n = 27

Degree of freedom, df = 27 - 1 = 26

Using the relation for the confidence interval :

[s²(n - 1) / X²α/2, n-1] ; [s²(n - 1) / X²1-α/2, n-1]

From the chi distribition table :

X²α/2, n-1 = 41.923 ; X²1-α/2, n-1 = 13.844

Hence,

[34.34*26 / 41.923] ; [34.34*26 / 13.844]

[21.297 ; 64.493]

The 95% confidence interval for the population variance is :

21.297 < σ² < 64.493

Standard deviation is the square root of variance, hence,

The 95% confidence interval for the population standard deviation is :

4.615 < σ < 8.031

3 0
3 years ago
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