Perform the indicated operation. Assume that all variables are nonnegative.-
- (-3
)
A. 2
B. -4
C. 4
D. 2
Answer: D
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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. 
= 
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Find all points where the function has any relative extrema or saddle points and identify the type of relative extremum.f(x, y) = e-(x2 + y2 - 4y)
A. Relative maximum at at (0, 2) and relative minimum at at (0, -2) B. Relative maximum at (0, 2) C. Saddle point at (0, 2) D. No relative extremum or saddle points.
Write the sentence as a mathematical statement.Seven is greater than or equal to four.
A. 7 ? 4 B. 7 = 4 C. 7 > 4 D. 7 ? 4