Solve the problem.Consider the following simplified digital photograph that has a 3 × 3 grid with four gray levels numbered from 0 to 3. It shows a letter Y in white on a black background.
Let A be the 3 × 3 matrix that represents this figure digitally. Find the matrix B for which B - A represents the negative image of the picture represented by A.
A. 
B. 
C. 
D. 
Answer: D
Mathematics
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Sketch the vector field in the plane along with its horizontal and vertical components at a representative assortment of points on the circle x2 + y2 = 4.F = 
i + 
j
What will be an ideal response?
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Convert the number to binary form.298 decimal
A. 100101011two B. 11010101two C. 100101010two D. 11010100two
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Find all replacements (less than the modulus) for the question mark that make the statement true.9 ? 4 ? ? (mod 7)
A. 2 B. 1 C. 6 D. 4
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Determine whether the indicated vertex is even or odd. 
Vertex "E"
A. "Odd" B. "Even"
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