The sum of the entries in each column of a transition matrix must not exceed 1.
b. False
a. True
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Answer the question.A parcel delivery service lowered its prices and finds that it has delivered twice as many parcels this year as it did last year. To illustrate this fact, the manager draws a pictogram as shown below. Each cube depicts a parcel. The side length of the "parcel" on the right is twice the side length of the "parcel" on the left. ?
Why is this pictogram misleading? What visual impression is portrayed by the pictogram?
What will be an ideal response?
Solve the inequality, giving its solution set in both interval and graph forms.
< 5 
A. (-?, -10)
B. (-?, -10]
C. (-10, ?)
D. [-10, ?)
Use Descartes' Rule of Signs to determine the possible number of positive and negative real zeros for the function. Then, use a graph to determine the actual number of positive and negative real zeros.P(x) = 9x8 + 4x6 + 9x4 + 5x2 + 8
A. possible: 0 pos, 0 neg
actual: 0 pos, 0 neg
B. possible: 1 pos, 1 neg
actual: 1 pos, 1 neg
C. possible: 1 or 3 pos, 1 neg
actual: 1 pos, 1 neg
D. possible: 1 pos, 1 or 3 neg
actual: 1 pos, 1 neg
Find the area of the region under the graph of f on [a, b].
f (x) = 
? 2x + 4; [?1, 2]
a. 3
b. –12
c. 12
d. –3