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2 years ago

5 layersof earth plate tec

Geography

2 answers:

Ksenya-84 [330]2 years ago

6 0

Answer:

Crust

Mantle

Lithosphere

Asthenosphere

Mesosphere

Earth's outer core

Earth's inner core

Explanation:

Triss [41]2 years ago

6 0

Answer:

Lithosphere, Asthenosphere, Mesosphere, Outer Core, and Inner Core.

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When Carla solved for the height from the ground to the point where the ladder

Westkost [7]

Answer:

<em>See explanation</em>

Explanation:

Given

Represent the vertical angle with $\theta$

$\theta = 75$

The question has incomplete details because the length of the ladder is not given; neither is the distance between the ladder and the wall given.

<em>See attachment for illustration</em>

So, this solution will be based on assumptions.

Represent

- The height from ground to the top of the ladder with y

- The length of the ladder with L

- The distance between the ladder and the wall with x

Carla could solve for y in any of the following ways:

1. Tan formula

$tan \theta = \frac{opp}{adj}$

In this case:

$tan \theta = \frac{x}{y}$

Multiply both sides by y

$y * tan \theta = \frac{x}{y} * y$

$y * tan \theta = x$

Divide both sides by tan

$y = \frac{x}{tan \theta}$

$y = \frac{x}{tan 75}$

This can be used if the distance (x) between the ladder and the wall is known.

Assume x = 15

$y = \frac{15}{tan 75}$

$y = 4.02$

2. Cosine formula

$cos \theta = \frac{adj}{hyp}$

In this case:

$cos \theta = \frac{y}{L}$

Multiply both sides by L

$L * cos \theta = \frac{y}{L} * L$

$Lcos \theta = y$

$y = Lcos \theta$

$y = Lcos75$

This can be used if the length (L) of the ladder is known.

Assume L = 15

$y = 15 * cos75$

$y = 3.88$

3 0

2 years ago

In the space below, write out the steps you would take when using a cost-benefit analysis to decide on which pair of shoes you s

Digiron [165]

Answer:

Explanation:

Hi, please find the attached and respond. Thank you!

Download docx

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2 years ago

What are the three main types of farming found in Africa? Short answers please.

artcher [175]

1- Maize Mixed Farming System
2- Irrigated Farming System
3- Rice Tree Crop Farming System

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2 years ago

Scientist have found fossils of ocean-dwelling or marine animals in the mountains of Pennsylvania. What does finding fossils of

Ostrovityanka [42]

Answer:

Before mountain building occurred, the area was underwater.

Explanation:

Through excavation, fossils that are of marine animals are often found high on mountain ranges. This seems weird from today's perspective, as marine animals can only be found in ocean waters, and there is no way they can travel on land and upon the mountains. Earth has changed a lot throughout history though, so such occurances are actually not that weird.

The mountains in Pennsylvania are such a place, with an abundance of marine fossils. When we look at the geological past of what is now Pennsylvania we can easily see why this is the case. The whole area was actually underwater for millions of years. This was the case before mountain building occurred here when part of the ocean floor raised high above the surface of the water and created land. As the crust was going up, the fossils on it went up as well.

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3 years ago

Approximately when did the first plants and Arthropods appear on land

zubka84 [21]

the first plants and anthropodes appear on land approximately about 470 million years ago

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3 years ago

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