Find the indicated measure of central tendency.At a supermarket during the 6 p.m. rush, the manager counted the number of customers waiting in each of the 12 checkout lines. The results are shown in the table. Find the mean number of customers waiting in line.
A. 5.8
B. 4.5
C. 5.2
D. 4.3
Answer: D
Mathematics
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Divide. Write with positive exponents.
A. 3x3 + 12x10 - 12x8 + 8x6 + 5x5
B. 3x3 + 3x2 - 3
C. 12x11 + 3x2 - 3 + 
+ 
D. 3x3 + 3x2 - 3 + 
+ 
Mathematics
Use an Euler diagram to determine whether the argument is valid or invalid.All painters use paint.All painters use brushes.Some people who use paint are teachers.Therefore, Some painters are teachers.
A. valid B. invalid
Mathematics
Multiply and write the product as a mixed number in simplest form.2
? 3
A. 6
B. 6
C. 6
D. 6
Mathematics
Choose the graph that satisfies the given conditions.Polynomial of degree 4 with two distinct x-intercepts and a negative leading coefficient
A. 
B. 
C. 
D. 
Mathematics