Determine all values that cause the expression to be undefined.

A.
B. -18
C. 0
D.  


Answer: A

Mathematics

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Solve.  ? 9

A. x ? -1 or x ? 17 B. -9 ? x ? 9 C. -1 ? x ? 17 D. -17 ? x ? 1

Mathematics

Refer to the figure in which ? and ? .

If AD = 10 cm and BD = 3 cm, find CD. (a) 30cm (b) 15cm (c) 30cm (d) 6cm

Mathematics

Solve the problem.Three different high schools plan to order the same three text books. School A plans to order 90 of book 1, 20 of book 2, 80 of book 3. School B plans to order 60 of book 1, 20 of book 2, 20 of book 3. School C plans to order 80 of book 1, 100 of book 2, 70 of book 3. The cost of book 1 is $15 per copy, the cost of book 2 is $20 per copy, and the cost of book 3 is $25 per copy. What matrix product displays the cost to each school of buying the textbooks? Display the two matrices which must be multiplied and their product. 

A.   = 
B.   =   
C.   =  
D.   = 

Mathematics

Sketch the graph of f(x). Determine the domain, range, and the equation of the horizontal asymptote of the function.f(x) = 5 - e-x

A. Domain: (-?, ?), range: (-?, 5)
Horizontal asymptote: y = 5

B. Domain: (-?, ?), range: (-?, 5)
Horizontal asymptote: y = 5

C. Domain: (-?, ?), range: (5, ?)
Horizontal asymptote: y = 5

D. Domain: (-?, ?), range: (5, ?)
Horizontal asymptote: y = 5

Mathematics