Answer:
Step-by-step explanation:
Answer:
-1 -5 +9 = 3
Step-by-step explanation:
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:
Answer:
146
Step-by-step explanation:
4×12+5×10+4×12=146