ANSWERS
TO TIIE FINAL
EXAM PRACTICE PROBLEMS
1)
p
=
6,
Q=S(O
or D(6)
:4oo
2) a)
V(Q=2g,go0-1,100
t b)
$14,500
3)
a)
P(x)=233*33x-2x2 -(ll4)xa
b)
P'(x)=33-4x-x3,
P"(x):4-3x',
C'(x):x
3
-42x-133
c)
-$1,743lunit d)
$1,091/unit
e)
x:3
(round
up)
0
$294
4)
a)
$228lunit
b)
x--27
(round
up) c)
$9,252
5) a)
P(x)=232x-.14x2
-522 b) 829
c)
$95,592
6) a)
S7,73l,20lunit
(use
TI-83
values
in
table)
b) C'(15):$11,475
7)
a)$69,422
b)
$69,473
8) 6,40/0
9) R'(5)=$48.25lunit
10)
$5,394
11)
$384
12)
$1"346.67
(nearest
cent)
*Note:
On
the final exam all
work must be
shown. In those
that involve
the
TI-83,
give
the set-up &
explain
the menus
you
use.
