AP Calculus AB Quiz
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ANALYTICAL APPLICATIONS OF DIFFERENTIATION
Question 1
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A rectangle's length is
x
x
x
and width is
36
x
\frac{36}{x}
x
36
; which
x
x
x
minimizes perimeter
P
=
2
(
x
+
36
x
)
P=2\left(x+\frac{36}{x}\right)
P
=
2
(
x
+
x
36
)
?
A
x
=
36
x=36
x
=
36
B
x
=
3
x=3
x
=
3
C
x
=
12
x=12
x
=
12
D
x
=
0
x=0
x
=
0
E
x
=
6
x=6
x
=
6
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