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DiKsa [7]
3 years ago
11

A plane flew 2,190 kilometers from Chicago to Flagstaff. Another plane flew 2,910 kilometers from Chicago to Oakland. How much f

arther did the plane that flew to Oakland fly than the plane that flew to flagstaff?
Mathematics
1 answer:
DedPeter [7]3 years ago
3 0
The plane that flew to Oakland flew 720 further than the plane that flew to flagstaff.
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klio [65]

Step-by-step explanation:

when the difference between CI and SI given then the sum =

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Find the value of the variable What is x?
yaroslaw [1]

Answer:

x = 7

Step-by-step explanation:

I think there may be other ways to do this ... but this is one I  guess....

one angle= 90 ( given)

the other = 45 (given)

the third = 90 + 45 + a = 180  

(all angles of triangles is 180 [angle sum property])

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The base angles are equal so that means it is a isoscles triangle. In isoscles triangle, two sides are equal ,  so

if one side is 7

the x is 7 too

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I think this is right

5 0
3 years ago
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slavikrds [6]

Answer:

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Step-by-step explanation:

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

df = 29 - 1 = 28

Now, we have to find a value of T, which is found looking at the t table, with 28 degrees of freedom(y-axis) and a confidence level of 0.95(t_{95}). So we have T = 1.701.

A t-score of 1.701 should be used to find the 95% confidence interval for the population mean

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polet [3.4K]

Answer:

area: 20 i think

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pic below

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3 years ago
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