Is the relation a function?y = x2 + 8x + 22
A. Yes
B. No
Answer: A
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Provide an appropriate response.Change 500 inches to meters. (Round to nearest tenth; 1 m = 39.37 in.)
A. 12.8 B. 196.85 C. 19,685 D. 12.7 E. none of the above
Use Descartes' rule of signs to find the number of possible positive, negative, and nonreal roots for the following equation.
?
?
A. 0 positive; 0 negative; 15 nonreal B. 1 positive; 0 negative; 14 nonreal C. 0 positive; 1, 3, or 5 negative; 10, 12 or 14 nonreal D. 0 or 2 positive; 1 or 3 negative; 10, 12 or 14 nonreal E. none of these
Change the exponential expression to an equivalent expression involving a logarithm.23 = x
A. logx2 = 3 B. log23 = x C. log3x = 2 D. log2x = 3
Find the production matrix for the input-output and demand matrices.A = 
, D = 
A. 
B. 
C. 
D. 