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 black on a light gray background.
Let A be the 3 × 3 matrix that represents this figure digitally. Find the matrix B for which A + B represents the entire picture becoming one shade lighter.
A. 
B. 
C. 
D. 
Answer: D
Mathematics
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Evaluate the spherical coordinate integral.
A. 
?
B. 
?
C. 
?2
D. 
?2
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Find the GCF of the given terms.51x and 85x2
A. 17x B. 17x2 C. 15x D. 255x2
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Factor the polynomial completely.36s2 - 49t4
A. (6s + 7t2)2 B. (6s + 7t2)(6s - 7t2) C. (36s + t2)(s - 49t2) D. (6s - 7t2)2
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Solve the equation by the square root property.6x2 + 4 = 730
A. {365} B. {-12, 12} C. {-11, 11} D. {11}
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