Answer: 
Step-by-step explanation:
Given
String of the kite is 
Angle of elevation 
suppose altitude of the kite is h
from the figure, we can write

Thus, the altitude of the kite is 
Let, the number = x
Then, 2(x + 10) = -20
2x + 20 = -20
2x = -20 - 20
x = -40/2
x = -20
In short, The number would be: -20
Hope this helps!
B.The function is decreasing when x<0 and increasing when x>0
Answer:
No, give me brainliest please
Step-by-step explanation:
irrational because it is non terminating
Step-by-step explanation:
-2+3x=4
+2. +2
3x=6
÷3. ÷3
x=2