Find the product AB, if possible.A = [-5 2 1], B = 
A. 
B. 
C. 
D. 
Answer: B
Mathematics
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Answer the question.What does the digit 4 mean in the number 813,408?
A. hundreds B. thousands C. hundred-thousands D. tens
Mathematics
Find the vertex of the parabola.
?
?
?
A. 
B. 
C. 
D. 
E. 
Mathematics
For the polynomial, list each real zero and its multiplicity. Determine whether the graph crosses or touches the x-axis at each x -intercept.f(x) = 
x4(x2 - 3)
A. 0, multiplicity 4, crosses x-axis
B. 0, multiplicity 4, touches x-axis;
, multiplicity 1, crosses x-axis;
-
, multiplicity 1, crosses x-axis
C. 0, multiplicity 4, crosses x-axis;
, multiplicity 1, touches x-axis;
-
, multiplicity 1, touches x-axis
D. 0, multiplicity 4, touches x-axis
Mathematics
Evaluate -x for the given value of x.x = 32.1
A. 
B. -32.1
C. 32.1
D. 32
Mathematics