Perform the matrix operation.Given A =
and B = 
, find 2A + B.
A. 
B. 
C. 
D. 
Answer: A
Mathematics
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Solve the problem.A salesman packed 3 shirts and 5 ties. With one shirt, he could wear all 5 ties. With another shirt, he could wear 4 ties. With the third shirt, he could wear only 3 ties. How many different combinations did he have?
A. 60 B. 11 C. 23 D. 12
Mathematics
Divide numerator and denominator by the highest power of x in the denominator to find the limit.
A. 9 B. 81 C. does not exist D. 729
Mathematics
Solve the problem.Find the sum of the first 10 terms of the arithmetic sequence 88, 159, 230, . . . .
A. -3635 B. 4075 C. -2315 D. 3635
Mathematics
Use a graphing calculator to graph the piecewise-defined function, using the window indicated.f(x) = 
; window [-6, 5] by [-10, 6]
A. 
B. 
C. 
D. 
Mathematics