The ? shape in the figure below is shown using 9 pixels in a 3 × 3 grid. The color levels are given to the right of the figure. Use the matrix 
that represents a digital photograph of the ? shape to solve the problem.
Adjust the contrast by leaving the black alone and changing the light grey to dark grey. Use matrix addition to accomplish this.
A. 
+ 
= 
B. 
+ 
= 
C. 
+ 
= 
D. 
+ 
= 
Answer: B
Mathematics
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State which type of average, the mean, median, or mode, would be most appropriate in the situation described. Explain your thinking.A state governor is planning a tax cut. A researcher calculates the average amount that will be saved by residents of the state. Which average would best convey the amount that will be saved by most residents of the state?
What will be an ideal response?
Mathematics
Find the first term and the common ratio of the geometric sequence.1, 
, 
, 
, 
, . . .
A. a1 = 1, r = 
B. a1 = 1, r = 2
C. a1 = 
, r = 9
D. a1 = 
, r = 
Mathematics
Use the commutative and associative properties to simplify the expression.
A. t
B. 
t
C. 
t
D. 
t
Mathematics
Add or subtract as indicated.
+ 1
A. 
B. 
C. 
D. 
Mathematics