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 changing the black to light grey and the light grey to black. Use matrix addition to accomplish this.

A.
 +  = 
B.
 +  = 
C.
 +  = 
D.
 +  = 


Answer: C

Mathematics

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Identify the type of argument and determine its validity with a Venn diagram.Premise: If you cut me, I bleed.Premise: I do not bleed.Conclusion: You did not cut me.

What will be an ideal response?

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The water level in a tank rises 8 inches every minute. Write an equation of change that describes the height H, in inches, of the water at time t minutes. ?

A.
B.
C.
D.

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Solve using the elimination method. Use a graphing calculator to check your answer.x - y = -18x + y = -9

A. (0, 12) B. (0, -12) C. (-12, 0) D. (12, 0)

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Find an equation for the ellipse described.Center at (0, 0); focus at (0, 3); vertex at (0, -6)

A.  +  = 1
B.  +  = 1
C.  +  = 1
D.  +  = 1

Mathematics