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3 years ago

What happens when an object in space moves towards us?

Biology

1 answer:

alexandr402 [8]3 years ago

6 0

Light waves are compressed into higher frequencies

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The expression 40x2 – 65x + 50 represents the sum of the interior angles of a regular pentagon in degrees. If the interior angle

Nadya [2.5K]

Answer:

2(8x^2-13x+10)

Explanation:

There are 5 angle s in a pentagon and we are assuming are pentagon is a regular one so the angles are all congruent.

Let's let A represent the measurement of one of the those angles in our pentagon.

The sum of our angles in our pentagon would then be A+A+A+A+A or 5A.

But we are also given that this equals 40x^2-65x+50.

So that means 5A=40x^2-65x+50.

If we divide both sides by 5 we can find what one of our angles is in terms of x. So let's do that A=8x^2-13x+10.

So we want to know the sum of two our angles, we want to know what is A+A or 2A. 2A=2(8x^2-13x+10). To obtain that I just multiplied both sides of A=8x^2-13x+10 by 2.

6 0

4 years ago

Read 2 more answers

What kind of currents bring warm air to land?

Zinaida [17]

Answer: A warm current is just the reverse. A warm current is moving away from the Equator toward the poles. The water in a warm current is warmer than the surrounding water.

Explanation: The surface water temperature varies considerably between the Equator and the poles. As the ocean water is distributed across the Earth's surface by drifts and currents (see the infrared satellite photo of the warm Gulf Stream moving north along the east coast of Florida), warm water from the lower latitudes is moved into the higher latitudes and cold water is moved Equatorward. If you will remember, we noted in the section on Latitude that this redistribution of heat by ocean water is one of the major ways excess energy is moved poleward (and cold water is moved Equatorward).

I hope this helps, good luck

7 0

3 years ago

Use the drop-down menus and what you know about index fossils to choose the correct answers.

galina1969 [7]

Answer:

1-short

2-order

3-different

Explanation:

i did it :)

4 0

3 years ago

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What is DNA? What information does it contain? Where is it located?

sesenic [268]

Answer:

DNA is Deoxyribonucleic Acid. It contains genetic information/codes. It is located in the nucleus of the cell.

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3 years ago

In what ways do plants benefit from animals?

Jlenok [28]

Animals help plants by pollinating them, helping them to disperse seeds.

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3 years ago