In the middle layer of the sun's atmosphere, called the chromosphere, the temperature averages 2.78 X 104 degrees Celsius.

after abc its efg

step-by-step explanation:

4 + 5 7/9= 9 7/9

step-by-step explanation:

answer

d. 10

explanation

the distance from point y to wx is the height of the triangle.

using pythagoras theorem,

group similar terms to get,

this implies that,

take positive square root of both sides to get,

this implies that,