Determine whether the infinite geometric series converges or diverges. If it converges, find its sum.20 + 10 + 5 + ...
A. Converges; 40
B. Converges; 35
C. Converges; 20
D. Converges; - 20
Answer: A
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Find the volume of the indicated region by an iterated integration.The solid cut from the first octant by the surface 
A. 
B. 108
C. 81
D. 54
Which of the following types of extensions can help eliminate down-time and encourage metacognitive activity?
a. Having students write their own, related problems to pose to others b. Having students prepare to present their solution to the rest of the class c. Asking students if they can come up with another way to solve the given problem d. All of the above
An equation of the form y = (axk + b)n can be thought of as the composition of the functions f(u) = un and 
and can be written as 
where 
Use this concept to fill in the blanks.y = (8x2 - 1)2 can be written as y = u- where u(x) = ______.
What will be an ideal response?
Find the number of elements in the indicated set by referring to the given table.The table below shows the results of a poll taken in a U.S. city in which people are asked which candidate they intend to vote for in an upcoming presidential election. 
Find the number of people in the set R' ? (A ? F)
A. 812 B. 929 C. 1224 D. 295