Answer:
So, 
Step-by-step explanation:

To evaluete this expression we apply exponential property

IF any expression has exponent 0 then the value is 1 always
for example, 

because exponent is 0
So, 
Answer:
0
Step-by-step explanation:
-(-x) ^3-x^3
x^3-x^3
=0
The complete question in the attached figure
we know that
tan R°=opposite side angle R/adjacent side angle R
opposite side angle R=72 units
adjacent side angle R=25 units
so
tan R°=72/25
R=arc tan (72/25)---------> R=70.85°-------> R=70.9°
the answer is R=70.9°
Answer:
Step-by-step explanation:
the math is the nexlation when the filaction comes to hand and then u add with the nexlation and that the answer