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
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True or false?When using a truth table, the statement p ? q is equivalent to ~q ? ~p.
A. True B. False
To answer the following question(s), refer to the Mandelbrot replacement process described by:? Start: Choose an arbitrary complex number s, called the seed of the Mandelbrot sequence. Set the seed s to be the initial term of the sequence src="https://sciemce.com/media/4/ppg__rrrr0615190846__f1q22g4.jpg" alt="" style="vertical-align: -8.0px;" /> Then the seed s is
A. s = -2.
B. s = 1.
C. s = 2.
D. s = -1.
E. none of these
? Procedure M: To find the next term in the sequence, square the preceding term and add the seed 
Suppose that when we apply the Mandelbrot replacement process we get 
and
Using the graph, determine any relative maxima or minima of the function and the intervals on which the function is increasing or decreasing. Round to three decimal places when necessary.f(x) = x2 - 6x + 7
A. relative maximum: -2 at x = 3; increasing (3, ?); decreasing (-?, 3) B. relative maximum: 3 at y = -2; increasing (-?, 3); decreasing (3, ?) C. relative minimum: 3 at y = -2; increasing (-?, 3); decreasing (3, ?) D. relative minimum: -2 at x = 3; increasing (3, ?); decreasing (-?, 3)
Find the inverse of the one-to-one function.f(x) = 
A. f-1(x) = x3 + 25
B. f-1(x) = x3 - 5
C. f-1(x) = x - 5
D. f-1(x) = 