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 which represents the entire picture becoming one shade lighter.
A. 
B. 
C. 
D. 
Answer: C
Mathematics
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Find the reciprocal.
A. 10
B. 
C. -10
D. -1
Mathematics
Solve the given equation. Give an exact solution.log (x + 3) = log (2x - 2)
A. ?
B. 
C. 
D. 
Mathematics
Find the indicated probability. Round your answer to 6 decimal places when necessary.What is the probability that a family with three children does not have three children of the same gender? Assume boys and girls are equally likely.
A. 
B. 
C. 
D. 
Mathematics
Use the rules for exponents to rewrite the expression and then evaluate the new expression. 
A. 0 B. -12 C. 1 D. -4
Mathematics