Answer:
x = 27
Step-by-step explanation:
Hi there!

Use the chain rule:
f(g(x)) = f'(g(x)) · g'(x)
Thus:
dy/dx sin(x) = cos(x)
dy/dx cos(x) = -sin(x)
Use the chain rule format:
f(x) = sin(x)
g(x) = cos(x)
cos(cos(x)) · (-sin(x))
-sin(x)cos(cos(x))
Answer:
2/5 pizza
Step-by-step explanation:
If 1/20 is one dollar, you can buy 8/20, that is 2/5 pizza
10 is the value coz you add 10 each time you add