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Anastaziya [24]
3 years ago
9

Which line is the graph of y - 2x + 4? A)the x-axis B)p C) e D)t

Mathematics
1 answer:
viktelen [127]3 years ago
5 0
Answer: Slope: 2
Y-Intercept: -4

Graph:
x | y
——
0 | -4
1 | -2
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Point m is the center of a regular octagon what is one portion of octagon
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I believe the answer would be one eighth or 1/8
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The perimeter of a building is 900 feet. If the length of the building is 400 feet, find the width. How many lights will be need
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Answer:

The width of the building is 50 lamps and 60 lamps will be needed.

Step-by-step explanation:

The perimeter is computed by the sum of the sides of the building, since the length and width are equal on the oposite sides of the building, the perimeter is given by:

perimeter = 2*length + 2*width

900 = 2*(400) + 2*width

2*width + 800 = 900

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Answer:

The upper boundary of the 95% confidence interval for the average unload time is 264.97 minutes

Step-by-step explanation:

We have the standard deviation for the sample, but not for the population, so we use the students t-distribution to solve this question.

The first step to solve this problem is finding how many degrees of freedom, we have. This is the sample size subtracted by 1. So

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95% confidence interval

Now, we have to find a value of T, which is found looking at the t table, with 34 degrees of freedom(y-axis) and a confidence level of 1 - \frac{1 - 0.9}{2} = 0.975([tex]t_{975}). So we have T = 2.0322

The margin of error is:

M = T*s = 2.0322*30 = 60.97

The upper end of the interval is the sample mean added to M. So it is 204 + 60.97 = 264.97

The upper boundary of the 95% confidence interval for the average unload time is 264.97 minutes

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Step-by-step explanation:

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