EBK INTERMEDIATE ALGEBRA
13th Edition
ISBN: 9780134719023
Author: Johnson
Publisher: YUZU
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Chapter C, Problem 12ES
a Solve using matrices
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5) You are purchasing a game for $30. You have a 5% off coupon and sales tax is 5%. What
will your final price be? Does it matter if you take off the coupon first or add in the tax first?
6) You have ten coupons that allow you to take 10% off the sales price of a jacket, and for
some strange reason, the store is going to allow you to use all ten coupons! Does this mean
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First, the teller would scan the price tag on the jacket, and the computer would show the
price is $100. After the teller scans the first coupon, the computer will take 10% off of
$100, and show the price is $90. (Right? Think about why this is.) Then after the teller scans
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(a) Continue this reasoning to fill in the table below showing the price of the jacket (y) after
you apply x coupons.
(b) Make a graph showing the price of the jacket from x = 0 to x = 10 coupons applied.…
(a)
(b)
(c)
(d)
de
unique?
Answer the following questions related to the linear system
x + y + z = 2
x-y+z=0
2x + y 2 3
rewrite the linear system into the matrix-vector form A = 5
Fuse elementary row operation to solve this linear system. Is the solution
use elementary row operation to find the inverse of A and then solve
the linear system. Verify the solution is the same as (b).
give the null space of matrix A and find the dimension of null space.
give the column space of matrix A and find the dimension of the column
space of A (Hint: use Rank-Nullity Theorem).
please explain in a clear way
Chapter C Solutions
EBK INTERMEDIATE ALGEBRA
Ch. C - Solve using matrices: 5x2y=44,2x+5y=6.Ch. C - Solve using matrices: x2y+3z=4,2xy+z=1,4x+y+z=1.Ch. C - a Solve using matrices
1.
Ch. C - a Solve using matrices
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Ch. C - a Solve using matrices
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Ch. C - a Solve using matrices
4.
Ch. C - a Solve using matrices 5x3y=2,4x+2y=5Ch. C - a Solve using matrices
6.
Ch. C - a Solve using matrices 2x3y=50,5x+y=40Ch. C - a Solve using matrices
8.
Ch. C - a Solve using matrices
9.
Ch. C - a Solve using matrices 3x+2y+2z=3,x+2yz=5,2x4y+z=0Ch. C - a Solve using matrices p+q+r=1,p2q3r=3,4p+5q+6r=4Ch. C - a Solve using matrices x+2y3z=9,2xy+2z=8,3xy4z=3Ch. C - a Solve using matrices
13.
Ch. C - a Solve using matrices 4a+9b=8,8a+6c=1,6b+6c=1Ch. C - a Solve using matrices 3p+2r=11,q7r=4,p6q=1Ch. C - a Solve using matrices
16.
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