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. 
= 
Answer: A
Mathematics
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Perform the indicated operation or operations. Write the answer in simplest form. If the problem contains mixednumbers and the answer is an improper fraction, express the answer as a mixed number.
? 
2
A. - 
B. 
C. 
D. 
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Describe the sequence
of transformations from f to g. The parent function
is related to g.
Mathematics
Assume x and y are functions of t. Evaluate dy/dt.xy + x = 12; 
= -3, x = 2, y = 5
A. 9 B. 3 C. -9 D. -3
Mathematics
Find the area of the region.
292 ft
A. 21,306 sq ft B. 21,316 sq ft C. 730 sq ft D. 21,326 sq ft
Mathematics