Multiply.(3a - 7b)(4a - 11b)
A. 12a2 - 61ab - 61b2
B. 12a2 - 28ab + 77b2
C. 12a2 - 33ab + 77b2
D. 12a2 - 61ab + 77b2
Answer: D
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Solve the problem.Find an upper bound for 
in estimating 
with n = 10 steps.
A. 
B. 
C. 
D. 
Determine the most appropriate metric unit to go in the blank. Choose from L, mL, kg, g, and mg.The apple weighs 135 
.
A. L B. g C. mg D. kg E. mL
Which method should be used to solve the system? Explain your answer, including a description of the first step. x2 - 3y2 = 497x2 - 7y2 = 9
What will be an ideal response?
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 dark grey and the light grey to white. Use matrix addition to accomplish this.
A. 
+ 
= 
B. 
+ 
= 
C. 
+ 
= 
D. 
+ 
= 