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3 years ago

How scientists determine the different features of the Earth?

Geography

1 answer:

svlad2 [7]3 years ago

8 0

Answer:

scientist can tell by observing the seismic waves that are recorded all over the surface of the earth from distant earthquakes

Explanation:

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Which of the following shows the correct location of Georgia?

Nata [24]

C, because it is bounded to the west by the Black Sea

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3 years ago

Suppose point H exists such that GH=7 and HJ=7. Must H be the midpoint of GJ

mina [271]

Yes. It is the midpoint because the line would be GHJ and H is halfway between the 14 difference.

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4 years ago

The term "unification" refers to the merging of two states into one, but not to the creation of regional political or economic b

Stella [2.4K]

Answer:

The unification term refers to a state formation.

Explanation:

The term unification refers to unify or join more than one state. It is a nation-state formation and involves bringing together various states into a single nation. Germany and Italy are part of the unification of several states. The Unification of Germany and Italy were part of the nationalism that began to emerge in the 19th century. The Unification is only possible through having the same culture, religion, culture and language in all the small states.

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3 years ago

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Match each geographic feature to the correct geographic region. The region with the largest population. It has a temperate clima

mina [271]

Answer:

5A: Northwest Region: Rocky Mountains

2B: West Region: Great Basin Desert

4C: South West Region: Grand Canyon

3D: Midwest Region: Great Plains

6E: Southeast Region: Everglades

1F: Mid-Atlantic Region: Many bays and good harbors

7G: Northeast Region: Rocky coastline and small coastal islands

Explanation:

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3 years ago

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Find an equation for the perpendicular bisector of the line segment whose endpoints

zzz [600]

Answer:

y= -7/2x-26/2 or y= -7/2x-13

Explanation:

To solve this question you need all of these formulas:

gradient: $\frac{y2-y1}{x2-x1}$ , Point-Slope $y-y1=m(x-x1)$ ,

perpendicular m $(m1)x(m2)=-1$ , Midpoint $(\frac{x1+x2}{2}$ , $\frac{y1+y2}{2} )$

and equation of a line $y=mx+c$

where m stands for gradient

First things first.

To start you have to know the data of the line that includes the two endpoints, so you calculate its gradient (m) of this line with the gradient fromula: $m=\frac{-4-(-8)}{5-(-9)}$ , which equals 4/14 or 2/7

(It can also be called rise/run) (Remember the rule of signs where - and - equal +)

with that information you can proceed with the point-slope or point-gradient formula, so you plug the values: y-(-8) = 2/7 (x-(-9)), which results in y+8=2/7(x+9) and then y+8=2/7x+18/7.

To finish the equation you move eight to the other side. To simplify things you can change it into a fraction as I did, and remember to change signs.

y=2/7x+18/7 -8 -> y=2/7x+18/7-56/7 . This gives us the number of y=2/7x-38/7, which is the equation of the first line.

Now to know the gradient of the second line you apply the formula of perpendicular bisector where m1 x m2 = -1. We know m1 (gradient of the first line) is 2/7, so m2 = $\frac{-1}{2/7}$ = -7/2. m2 is therefore -7/2

Now you have to know the midpoint between the two endpoints, which will act as the start point of the perpendicular bisector

M (midpoint) = $(\frac{-9+5}{2} ,$ $\frac{8+(-4)}{2} )$ , which give us the coordinates of (-2, -6)

(remember, x coordinate is always first)

with this point we can apply again the point-slope formula to know the equation of the line:

y-(-6)=-7/2(x-(-2)) -> y+6=-7/2(x+2) -> y+6=-7/2x - 14/2

Move the 6 to isolate the y

y=-7/2x -14/2 - 12/2

which equals y= -7/2x -26/2

You can check the results in this page: GraphPlotter

https://www.transum.org/Maths/Activity/Graph/Desmos.asp

To make sure the answer is correct.

Hope it helps :)

8 0

3 years ago