Ask your teacher my notes use matrix inversion to

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My Notes
Use matrix inversion to solve the collection of systems of linear equations. HINT [See
Example 4.]
(a) −
x
−
4
y
+
2
z
=
−1
4
x +
2
y
− z = 11
x + y − z = 12
( x , y , z ) =
$$8, − 1, − 5

(b)
x
−
4
y
+
2
z
=
−
2
x +
2
y
− z =
x + y − z =
( x , y , z ) =
$$8,3,9
(c)
x
−
4
y
+
2
z
=
x +
2
y
− z =
x + y − z =
( x , y , z ) =
$$0,0,0
−
5
2
−
0
0
0
6. 1/1 points | Previous AnswersWaneFM6 4.3.054.
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My Notes
The Arctic Juice Company makes three juice blends: PineOrange, using 2 quarts of pineapple
juice and 2 quarts of orange juice per gallon; PineKiwi, using 3 quarts of pineapple juice
and 1 quart of kiwi juice per gallon; and OrangeKiwi, using 3 quarts of orange juice and 1
quart of kiwi juice per gallon. The amount of each kind of juice the company has on hand
varies from day to day. How many gallons of each blend can it make on a day with the
following stocks? (Use matrix inverses to find the solutions.)
(a) 970 quarts of pineapple juice, 640 quarts of orange juice, 390
of kiwi juice
PineOrang
e
110 gal
PineKiwi
250 gal
OrangeKiwi
140 gal
(b) 770 quarts of pineapple juice, 920 quarts of orange juice, 430
of kiwi juice
quarts
quarts

PineKiwi
190 gal
OrangeKiwi
240 gal
(c) A quarts of pineapple juice, B quarts of orange juice, C quarts of kiwi
juice
PineOrang
e
$$
14
( A + B − 3 C )
gal
PineKiwi
$$
16
( A
−
B +3 C )
gal
OrangeKiwi
$$
16
( − A + B +3 C )
gal
7. 1/1 points | Previous AnswersWaneFM6 4.3.056.
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My Notes
Inverse mutual funds, sometimes referred to as "bear market" or "short" funds, are designed
to deliver the opposite of the performance of the index or category they track, and so can be