a. The
component tells you the particle's height:

b. The particle's velocity is obtained by differentiating its position function:

so that its velocity at time
is

c. The tangent to
at
is

Answer:
86 degrees
Step-by-step explanation:
180 - (74 + 20) = 86
Answer:
The answer is B ⇒ 
Step-by-step explanation:
∵ v = π r² h
∴ r² = 
∴ r = 
∵ r = 10 ft and h = 15 ft
∴ 
Answer: The last one
Step-by-step explanation: The data is all between 4 and 7 and there are no gaps. The max is 7 dollars as stated.
3/10
Calm down u got this;)