Answer:
z+150=180
z=30
then again
x+x+20+30=180
2x=180-50
2x=130
x=130/2
x=65
Step-by-step explanation:
x
To find where the second derivative of the function changes sign, from negative to positive, or vice-versa. So, we find the second derivative of the given function.
9. 5y
10.10x^2-1
not done