Tom is leading a workshop for 23 people. He wants each person to meet every other person (shake hands once). How many handshakes occur?
Fill in the blank(s) with the appropriate word(s).
253
Mathematics
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Find an equation of the circle satisfying the given conditions.Center at (0, -3), radius 
A. (x + 3)2 + y2 = 100 B. (x - 3)2 + y2 = 100 C. x2 + (y + 3)2 = 10 D. x2 + (y - 3)2 = 10
Mathematics
Use the root test to determine if the series converges or diverges.
A. Converges B. Diverges
Mathematics
Find the exact value.log 10,000
A. 
B. 4
C. 40
D. 
Mathematics
Graph the ellipse.
+ 
= 1
A. 
B. 
C. 
D. 
Mathematics