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ExtremeBDS [4]
3 years ago
12

Who discovered planet earth and what was the date

Geography
1 answer:
jasenka [17]3 years ago
5 0

Answer:

Eratosthenes

Eratosthenes calculated the circumference of the Earth by multiplying the distance between Alexandria and Syene by 50. Round sometime around 500 B.C.

Explanation:

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What is the scientific name for the highest level of the earth's atmosphere??
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If m∠ECA=(14x−2)° and m∠ACB=(12x+8)°, then m∠ECA=
loris [4]

Answer:

Angle ECA=68°

Explanation:

To solve, set the two angles equal to each other.

14x-2=12x+8

Now, we need to make the x's go to one side of the equation. This is because we need the x's to equal something. Otherwise, we can't solve. To do this, I am going to move 12x to the right. Remember, if a number is positive on one side, it will be negative when you move it to the other.

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Now, we need to add two to both sides.

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Now divide both sides by 2.

x=5

Now to solve, plug in 5 for x.

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3 years ago
Which of the following choices is not mentioned in the Antarctic Treaty System
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I try, Hope this help

8 0
3 years ago
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