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:
x = 4
Step-by-step explanation:
8/72 = x/36
crossmultiply
8 x 36 = X x 72
288 = 72x
divide both sides by 72
288/72 = x
therefore , x = 4
Answer:
this only goes to the thousanths.
Step-by-step explanation:
<u>Answer:</u>
<em>Number of calories in one slice of a 14 inch pizza is 189.825.
</em>
<u>Step-by-step explanation:</u>
Given that 6 inch pizza has <em>650 calories.
</em>
Therefore 1 inch pizza has
<em>calories.
</em>
14 inch pizza will have

Given that the 14 inch pizza is divided into 8 slices.
Therefore each slice of the 14 inch pizza will have
<em>
</em>
Answer:
the answer to this is BC= 83