Use factoring techniques to solve the equation.x2 + 20 = 9x
A. {-5, -4}
B. {-5, 4}
C. {5, -4}
D. {5, 4}
Answer: D
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Find the surface area of the circular solid. Unless otherwise specified, use 3.14 for ? and round your answer to the nearest tenth.A right circular cone with r = 9 cm, h = 5 cm(Use the formula S = ?r 
+ ?r2.)
A. 254.3 cm2 B. 78.5 cm2 C. 545.3 cm2 D. 141.3 cm2
Rewrite the statement using the if...then connective. Rearrange the wording or words as necessary.No turkeys like Thanksgiving.
A. If it is not Thanksgiving, then no turkeys like it. B. If it is Thanksgiving, then turkeys like it. C. If it is a turkey, then it doesn't like Thanksgiving. D. If it is not a turkey, then it likes Thanksgiving.
Express the sum in sigma notation.
+ 
+ 
+ 
A. 
B. 
C. 
D. 
Simplify. Unless otherwise specified, assume that variables can represent any number.-
A. -5x B. 5x C. 5x3 D. -125x