Solve by completing the square.a2 - 10a + 9 = 0
A. a = ± 
B. a = 9, a = 1
C. a = -9, a = -1
D. a = 8, a = 1
Answer: B
Mathematics
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Provide an appropriate response. A restaurant sold 148 desserts one night, to 80% of their customers. How many customers did they have that evening?
A. 185 B. 228 C. 740 D. 148
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Use the circle graph to solve the problem.The circle graph below gives the inventory of the men's department of a store.
In which item of apparel does the store have the smallest investment?
A. Underwear B. Suits C. Shirts D. Socks
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Find the distance between the points: 
a. 
b. 
c. 
d. 
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Choose the most reasonable unit of measure.Weight of a quarter 11 
(mg, g, kg)
A. g B. kg C. mg
Mathematics