Solve the problem.Consider the following simplified digital photograph that has a 
grid with four gray levels numbered from 
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 A.
A. 
B. 
C. 
D. 
Answer: B
Mathematics
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Write in factored form.8m(2 - m) + 5n(2 - m)
A. m(8 + 5n)(2 - 1) B. no common factor C. (8m - 5n)(2 - m) D. (8m + 5n)(2 - m)
Mathematics
Solve the problem.The number of quarters needed to double an investment when a lump sum is invested at 4%, compounded quarterly, is given by n = 
. In how many years will the investment double, to the nearest tenth of a year?
A. 17.4 yr B. 69.7 yr C. 8.7 yr D. 34.8 yr
Mathematics
Add or subtract as indicated.5 + (-13)
A. -18 B. 18 C. -8 D. 8
Mathematics
Match the function with the graph.
A. y = 
B. y = 
C. y = 
- 5
D. y = 
- 5
Mathematics