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aleksklad [387]
3 years ago
15

Whats the solution to 4(0.8x+2.5)<2(0.125x-0.9)

Mathematics
1 answer:
Lera25 [3.4K]3 years ago
3 0

Answer:

x<−4

Step-by-step explanation:

math

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Given a mean earth radius of 20,906,000 ft, and an observation latitude of n 42 degrees, what is the arc distance of one second
murzikaleks [220]

Answer:

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Explanation:

The circumference of the earth at the given radius is ...

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If that circumference represents 360°, as it does for latitude, then we can find the length of an arc-second by dividing by the number of arc-seconds in 360°. That number is ...

  (360°/circle)×(60 min/°)×(60 sec/min) = 1,296,000 sec/circle

Then one arc-second is

  (131,356,272 ft/circle)/(1,296,000 sec/circle) = 101.355 ft/arc-second

__

Each degree of latitude has the same spacing as every other degree of latitude everywhere. So, this distance is the length of one arc-second of latitude: 101.355 ft.

_____

<em>Comment on these distance measures</em>

We consider the Earth to have a spherical shape for this problem. It is worth noting that the measure of one degree of latitude is almost exactly 1 nautical mile--an easy relationship to remember.

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alexus plans to practice soccer during the month of November if he practices 1/5 of those days how many days will he practice so
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