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Feliz [49]
3 years ago
6

Which of the following is an example of a breakthrough?

Social Studies
1 answer:
Sati [7]3 years ago
5 0

Answer:

A

Explanation:

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7. A circular hot spring has a diameter of 110 meters. Over time, the diameter
kodGreya [7K]

511.05m^{2} the  area of the hot spring decrease .

<u>Explanation:</u>

Here we have  A circular hot spring has a diameter of 110 meters. Over time, the diameter  of the spring decreases by 3 meters. We need to calculate  , how many square meters does the  area of the hot spring decrease:

Area of circular hot spring initially = \pi r^{2}

⇒ Area of circular hot spring initially = \pi r^{2}

⇒ Area of circular hot spring initially = \pi (\frac{D}{2} )^{2} = \frac{\pi D^{2}}{4}

⇒ Area of circular hot spring initially = \frac{\pi 110^{2}}{4} = 9498.5m^{2}

Over time, the diameter  of the spring decreases by 3 meters. Now,

Area = \pi (\frac{D-3}{2} )^{2} = \frac{\pi (D-3)^{2}}{4}

Area = \frac{\pi (110-3)^{2}}{4} = 8987.45m^{2}

Decrease in area :

⇒ 9498.5m^{2} - 8987.45m^{2}

⇒ 511.05m^{2}

∴ 511.05m^{2} the  area of the hot spring decrease .

7 0
3 years ago
Which of the following best describes an entrepreneur?
gtnhenbr [62]

Answer:

A

Explanation:

A person who invests in something knowjng the risk hoping to make money x

6 0
3 years ago
The economic practice of exploring more materials than you import is known as
Naddik [55]

The economic practice of exporting more materials than you import is known as a trade defecit, or a negative trade balance.

4 0
3 years ago
what event was the result of disputies between france and great britian that had been going on for almost 65 years
Pavlova-9 [17]

The French and Indian War. It was because of greed to have the most land in the New World

7 0
3 years ago
THE LONG PART IS JUST THE STORY. PLEASE HURRY
Dahasolnce [82]

Answer:

2

Explanation:

2 hope it helps

6 0
3 years ago
Read 2 more answers
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