Find the indicated sum or difference, if it is defined.Compute the difference A - B if A = 
and B = 
.
A. 
B. 
C. 
D. 
Answer: B
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Use the figure showing isotherms for the United States to answer the question. 
Which city has approximately the same temperature as Denver?
A. San Francisco B. Chicago C. Seattle D. New York
Provide an appropriate response.Which of the following properties do not hold for matrix multiplication?(i)Associative property(ii)Commutative property(iii)Distributive property(iv)Zero-factor property (If the product of two matrices is a zero matrix, then one of the factors must be a zero matrix.)
A. (ii) B. (ii), (iv) C. (i), (iii) D. None. All of the properties hold.
Perform the indicated operations.3 - (-7) ? (-2) + 11
A. 9 B. 52 C. 0 D. -9
Graph the function. State whether it is increasing, decreasing, or constant..f(x) = 
x + 1
A. decreasing
B. increasing
C. increasing
D. increasing