Answer:
what is that suppose to mean
oh wait nvm i get it now im dum
1 hr and 5 mins
srry i didnt know what elapsed meant-
Step-by-step explanation:

Hence, the 55th term of the sequence is 161.
Answer: Put a cardboard piece inside the envelope then mail it
Step-by-step explanation: If you make the cardboard piece the exact size as the pictures then put it behind all of the pictures it would make it hard for the pictures to bend if it has support.
Answer:
8
Step-by-step explanation:
Explanation is given step by step just below:
tan(theta(t))=y(t)/x(t)
differentiate
sec^2(theta(t))*theta'(t)=y'(t)x(t)-y(t)x'(t)/x^2(t)
thus
theta'(t)=(y'(t)x(t)-y(t)x'(t))
divided by (x^2(t)*sec^2(θ(t))