Answer:

Step-by-step explanation:
Hello There!
The angle labeled 6x is a right angle
If an angle is formed using the diameter of a circle then the opposite angle of that side is a right angle
So 6x = 90
isolate the variable
divide each side by 6
90/6= 15
6x/6=x
we're left with x = 15
Answer: 1
Step-by-step explanation:
substitute x with 0 in the polynomial so we get,
-3^x
= -3^0
= 1 ( because any number raised to 0 is 1)
Hope it helps:)
1. you didn't add anything
2. x>-4