Find a quadratic equation whose solution set is given.{9}
A. x2 + 18x + 81 = 0
B. x2 - 18x + 81 = 0
C. x2 + 9x + 81 = 0
D. x2 - 81 = 0
Answer: B
Mathematics
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Simplify. Assume that no radicands were formed by raising negative quantities to even powers.3
+ 9
A. 12
B. 84
C. 27
D. 12
Mathematics
Provide an appropriate response.Divide the fractions and reduce: 
÷ 
A. 
B. 
C. 1
D. 
Mathematics
Solve the problem.The finite sequence whose general term is an = 0.11n2 - 1.06n + 7.29where n = 1, 2, 3, ..., 9 models the total operating costs, in millions of dollars, for a company from 1991 through 1999.Find 
A. $26.6 million B. $31.7 million C. $25.36 million D. $21.86 million
Mathematics
Provide an appropriate response.Find the sum of the infinite geometric sequence (if it exists): 4, - 
, 
, - 
, . . .
Fill in the blank(s) with the appropriate word(s).
Mathematics