Given:
WXYZ is an isosceles trapezoid. WY=8x-3 and ZX=19.
To find:
The value of x.
Solution:
We know that the diagonals of an isosceles trapezoid are equal. So,


Add 3 on both sides.


Divide both sides by 8.


Therefore, the correct option is B.
Answer:
5700 / 18,500,00,00 = 30.8 mm/yr; or 30.8 km/Myr
Explanation:
- North America and the African plates moved away from each other due to the spreading of the Atlantic ocean and the opening of the mid-Atlantic ridge. That develops a diversion motion and separated the plateau in the west and eastern direction. This also leads to the splitting of the south American plate away from the African continent.
The answer would be the cracking of rock caused by the freezing and thawing of water.