Solve the problem.Assume it costs 25 cents to mail a letter weighing one ounce or less, and then 20 cents for each additional ounce or fraction of an ounce. Let L(x) be the cost of mailing a letter weighing x ounces. Graph y = L(x).
A.
B. 
C.
D. 
Answer: C
Mathematics
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Set up the iterated integral for evaluating 
over the given region D. DD is the right circular cylinder whose base is the circle 
in the xy-plane and whose top lies in the plane 
.
A. 
B. 
C. 
D. 
Mathematics
Find the general solution of the first-order differential equation by separating variables.
?
What will be an ideal response?
Mathematics
Prove that 
and 
are equivalent by showing that they represent the same vector.R = (-8, -6), S = (-7, -14), O = (2, 7), and P = (-13, -1)
A. Yes B. No
Mathematics
Give the system of linear equations that is equivalent to the matrix equation:
= 
.
What will be an ideal response?
Mathematics