Find the indicated matrix.Let A =
and B =
. Find 3A + B.
A. 
B. 
C. 
D. 
Answer: A
Mathematics
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Solve the problem.Among the 635,013,559,600 possible bridge hands (13 cards each) how many contain at least one card that is not a diamond?
A. 635,013,559,587 hands B. 317,506,779,799 hands C. 317,506,779,800 hands D. 635,013,559,599 hands
Mathematics
Find the vertex of the quadratic equation's graph and determine whether the graph opens up or down.y = x2 + 3x + 6
A. 
, down
B. 
, down
C. 
, up
D. 
, up
Mathematics
Simplify the expression. Express the answer so that only positive exponents occur. Assume that all variables are positive.(x4y5)7/3
A. x12/7y15/7 B. x28/3y35/3 C. x19/3y22/3 D. x35/3y28/3
Mathematics
Give the coordinates of the point of intersection of the linear equations.x + y = -11x - y = -1
A. (-6, -6) B. (-5, -5) C. (-6, -5) D. (-5, -6)
Mathematics