Which region of the country has the most diverse political trends?

Was it a good idea for people to set up civilizations near the Nile, Ganges, Huang He, and Chang Jiang Rivers? Why or why not?

Leokris [45]

Yes because rivers are important for trade and even things like fresh water and transport.

4 0

3 years ago

Describe and explain the changes in weather conditions that took place over the three days

soldier1979 [14.2K]

Weather is the short-term change in an area's humidity, temperature. and other similar variations in a location as oppose to climate.

The long term average being 30 years. These weather variations are affected by the temperature, precipitation, and wind.

Climate determinants include latitude, altitude, proximity to mountains and oceans, proportion of land to water, thermohaline circulation of the ocean, ocean currents, density and type of vegetation present in an area, as well as the areas' water retention and rainfall.

Climate are classified into three groups. These are Bergeron and Spatial Synoptic, Koppen, and Thornthwaite.

8 0

3 years ago

Most of the major cities in the Middle East are located near what natural resource?

Oksana_A [137]

Most of those major cities are located near Petroleum Fields and Coal Mines.

4 0

3 years ago

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

2 years ago

?when mapping the interior of the sun, astronomers must measure _____ as the photosphere moves up and down.

shusha [124]

It must measure the supergranules. This refers to the physical pattern casing the exterior of the quiet Sun with an archetypal horizontal scale of approximately 30,000 km and a lifetime of around 1.8 d. Its most noticeable or visible signature is as a fluctuating velocity field of 360 m st-1 rms whose components are mostly horizontal. This was exposed more than fifty years ago, conversely clearing up why and how it originates still represents one of the core challenges of modern solar physics.

7 0

4 years ago