Factor by grouping to obtain the difference of two squares.x2 - 10x + 25 - y2
A. (x - 5 + y)(x + 5 - y)
B. (x - 5 + y)(x - 5 - y)
C. (x + 5 + y)(x + 5 - y)
D. (x - 5 - y)2
Answer: B
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Work the application and answer with a complete sentence.Each box of matches contains 180 matches. Boxes of matches are shipped in cartons. Each carton contains 15 boxes of matches. How many matches are in each carton?
A. There are 270 matches in each carton. B. There are 12 matches in each carton. C. There are 2700 matches in each carton. D. There are 195 matches in each carton.
Find the real solutions, if any, of the equation. Use the quadratic formula.3x2 + x - 6 = 0
A. no real solution
B. 
C. 
D. 
Write any percent as a decimal and any decimal as a percent.0.008 of all math majors at a certain university double major in music.
A. 0.8% B. 8 C. 0.08% D. 8%
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 dark gray on a white background.
Let A be the 3 × 3 matrix that represents this figure digitally. Find the matrix which represents the negative image of the picture represented by A.
A. 
B. 
C. 
D. 