Estimate the value of the quantity.The graph below shows the rate of change of the price of a stock (in dollars per share per week) over a period of 6 weeks. Estimate the total change in dollars per share of the stock during this period. Use rectangles with widths of 1 week and let the function value at the midpoint of the rectangle give the height of the rectangle.
A. $2.00/share
B. $2.20/share
C. $1.60/share
D. $0.90/share
Answer: B
Mathematics
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Factor, if possible.-54x2 - 45x + 54
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Solve the problem.In an arithmetic sequence with first term P0 and common difference d, the sum of the first 200 terms is given by
A. 200(2P0 + 199d). B. 200(2P0 + 200d). C. 100(2P0 + 200d). D. 100(2P0 + 199d). E. none of these
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Solve the problem.Last year the hatch-back model of a new car cost $16,165. This year's model costs 
How much more does this year's model cost?
A. $32,954 B. $524 C. $624 D. $31,954
Mathematics
If possible, find the matrix product of AB.A = 
; B = 
A. AB = 
B. AB = [-5 -42]
C. AB = 
D. AB = 
Mathematics