Solve the problem.Bob wants to fence in a rectangular garden in his yard. He has 68 feet of fencing to work with and wants to use it all. If the garden is to be x feet wide, express the area of the garden as a function of x.
A. A(x) = 36x2 - x
B. A(x) = 35x - x2
C. A(x) = 33x - x2
D. A(x) = 34x - x2
Answer: D
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The function f(x) changes value when x changes from x0 to x0 + dx. Find the approximation error 
. Round your answer, if appropriate.f(x) = 
, x0 = 3, dx = 0.5
A. 0.00794 B. 0.34921 C. 0.10318 D. 0.17778
Write the augmented matrix associated with the system.
A. 
B. 
C. 
D. 
Let 
and compute the Riemann sum of f over the interval 
, choosing the representative points to be the midpoints of the subintervals, using:
?
Two subintervals of equal length 
.
?
__________ sq units
?
Five subintervals of equal length 
.
?
__________ sq units
?
Ten subintervals of equal length 
.
?
__________ sq units
?
Can you guess at the area of the region under the graph of f on the interval 
?
?
? __________sq units
What will be an ideal response?
Simplify the exponential expression.-4-3
A. - 
B. 
C. 64
D. -64