solve. draw or write to show your work. I have 15 stamps. some are old. 6 are new. how many stamps are old?

What basic trigonometric identity would you use to verify that csc x sec x cot x = csc^(2)x

Which best describes the strength of the correlation, and what is true about the causation between the variables? it is a weak negative correlation, and it is not likely causal. it is a weak negative correlation, and it is likely causal. it is a strong negative correlation, and it is not likely causal. it is a strong negative correlation, and it is likely causal.

To solve the system of equations below, pedro isolated the variable y in the first equation and then substituted it into the second equation. what was the resulting equation? { 5y=10x {x^2+y^2=36