points
The Total Cost function is C
=x^2 + x +10, then Average
cost and Marginal cost when x
=20 is
O 20.5 and 42
O 21.5 and 41
O 21.5 and 41.5
O
25.2 and 43
Answers
Answered by
0
Answer:
Given, AC=x+5+
x
36
(i) TC=(AC)x
=(
x+5+
x
36
).x
=x
2
+5x+36
MC=
dx
d
(TC)
=
dx
d
(x
2
+5x+36)
Ans. =2x+5
(ii) AC increases when
dx
d
(AC)>0
dx
d
(
x+5+
x
36
)=0
1−
x
2
36
>0
⇒x
2
−36>0
⇒(x+6)(x−6)>0
⇒x<−6,x>6
But x is +ve therefore AC increases when x>6.
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