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2 years ago

At times, latitudes with values higher than ________ degrees can have ~ 24 hours of continuous sunshine.

Mathematics

1 answer:

ryzh [129]2 years ago

7 0

At times, latitudes with values higher than 66.5 degrees can have ~ 24 hours of continuous sunshine.

Locations above the Arctic Circle (north of latitude 66.5 degrees, 90 degrees minus the tilt of the Earth's axis) are exposed to 24-hour sunlight. Below the Arctic Circle (latitude 66.5 degrees south), there is 24-hour darkness.

When at the equator, the sun is directly above – at the poles, the sun is on the horizon. However, regardless of the current location (from the pole to the equator), all parallels are bisected, so we have 12 hours a day and 12 hours a night in all locations.

Learn more about latitudes here: brainly.com/question/1939015

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What number must be added to the expression below to complete the square? x² - 18x

kiruha [24]

Answer:

$\boxed {\boxed {\sf 81}}$

Step-by-step explanation:

The standard form of a quadratic is:

$ax^2+bx+c$

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The expression given:

$x^2-18x$

follows these rules. Next, we divide the b (linear coefficient) by 2, then square it. Basically:

$(\frac{b}{2})^2$

The b in the expression is -18.

$(\frac{-18}{2})^2$

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This is the number that is added.

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3 years ago

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Zigmanuir [339]

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2 years ago

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grigory [225]

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3 years ago

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Makovka662 [10]

Answer:

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3 years ago