Use the counting principle to obtain the answer.A salesman packed 3 shirts and 6 ties. With one shirt, he could wear all 6 ties. With another shirt, he could wear 5 ties. With the third shirt, he could wear only 2 ties. How many different combinations did he have?
A. 13
B. 60
C. 32
D. 12
Answer: A
Mathematics
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Evaluate the expression.4-2
A. 16
B. -16
C. 
D. 
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Find the indicated matrix.Let A =
and B =
. Find 4A + B.
A. 
B. 
C. 
D. 
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Graph the lines and find the coordinates of the point of intersection.y = 2x + 1 and y = -2x + 5
A. 
B. 
C. 
D. 
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Solve the problem.Suppose that y = 
can be used to calculate the number of years y for x percent of a population of 
sparrows to die. Approximate the percentage (to the nearest whole per cent) of 
sparrows that died after 3 years.
A. 92% B. 88% C. 90% D. 86%
Mathematics