Accumulated sales. ProArt, Inc., estimates that its weekly online sales, S ( t ) , in hundreds of dollars, t weeks after online sales began, is given by S ( t ) = 9 e t . Find the average weekly sales for the first 5 weeks after online sales began. $ 26 , 534.37
Accumulated sales. ProArt, Inc., estimates that its weekly online sales, S ( t ) , in hundreds of dollars, t weeks after online sales began, is given by S ( t ) = 9 e t . Find the average weekly sales for the first 5 weeks after online sales began. $ 26 , 534.37
Accumulated sales. ProArt, Inc., estimates that its weekly online sales,
S
(
t
)
, in hundreds of dollars, t weeks after online sales began, is given by
S
(
t
)
=
9
e
t
.
Find the average weekly sales for the first 5 weeks after online sales began.
Consider the following system of equations, Ax=b :
x+2y+3z - w = 2
2x4z2w = 3
-x+6y+17z7w = 0
-9x-2y+13z7w = -14
a. Find the solution to the system. Write it as a parametric equation. You can use a
computer to do the row reduction.
b. What is a geometric description of the solution? Explain how you know.
c. Write the solution in vector form?
d. What is the solution to the homogeneous system, Ax=0?
2. Find a matrix A with the following qualities
a. A is 3 x 3.
b. The matrix A is not lower triangular and is not upper triangular.
c. At least one value in each row is not a 1, 2,-1, -2, or 0
d. A is invertible.
Chapter 4 Solutions
Pearson eText Calculus and Its Applications, Brief Edition -- Instant Access (Pearson+)
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