Solve.Sand is poured carefully into a pile that forms a right circular cone as shown. The total surface area of the cone with slant height s and base radius r is given by the polynomial ?r2 + ?rs. Find an equivalent expression by factoring out a common factor.
A. ?r(?r + s)
B. ?rs(r + 1)
C. ?r(r + s)
D. r(?r2 + ?s)
Answer: C
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Which of the following is not true? ?
A.
?
and 
may be a glide reflection.
B.
? and may be a translation.
C.
? and may be a reflection at a vertical line.
D.
?
and 
may be a rotation.
E.
?
and 
may be a rotation.
Use problem solving strategies to solve the problem.A boxer takes 3 drinks of water after each of the first three rounds of a championship fight. After the fourth round he increases the number of drinks by 1. If he continues to increase his drinks by 1 after each round, how many drinks will he take between the 14th and 15th rounds?
A. 14 drinks B. 13 drinks C. 19 drinks D. 10 drinks
Reduce the fraction to simplest form.
A. 
B. 
C. 
D. 
Evaluate the integral.
A. - 
ln
+ C
B. - 
ln
+ C
C. - 
ln
+ C
D. 
ln
+ C