Answer:
don't worry I'm on my way step bro ! where'd you get stuck ?! (;
Answer:


Step-by-step explanation:
Given

Solving (a): Write as inverse function

Represent a(d) as y

Swap positions of d and y

Make y the subject


Replace y with a'(d)

Prove that a(d) and a'(d) are inverse functions
and 
To do this, we prove that:

Solving for 

Substitute
for d in 




Solving for: 

Substitute 5d - 3 for d in 

Add fractions



Hence:

Alright, so 2x+2=0 (with x being the number) is what I'm getting from this. Subtract 2 from both sides to get 2x=-2, and then divide by 2 to get x=-1
Answer:
65
Step-by-step explanation:
You find the one equally in the center of the numbers after they are in order.
Answer:
(r^9-s^10) (r^18+r^9 s^10 + s^20)
Step-by-step explanation:
hope this helps :)