Simplify.
- 
A. 2
B. -2
C. 0
D. 1
Answer: C
Mathematics
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Multiply the polynomials.(x + y + 9)2
A. x2 + y2 + 81 B. x2 + y2 + 18x + 18y + 81 C. x2 + 2xy + y2 + 18x + 18y + 81 D. x2 + 2xy + y2 + 81
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Find the function value.Find sin 
, given that cos ? = 
and 0° < ? < 90°.
A. 
B. 
C. 
D. 
Mathematics
Find the matrix product when possible.
A. 
B. 
C. 
D. 
Mathematics
Write the decimal as a percent.0.6
A. 0.06% B. 60% C. 600% D. 0.6%
Mathematics