Solve the problem.The number of vertices in a tree with 57 edges is
A. 58.
B. 56.
C. 57.
D. 257.
E. none of these
Answer: A
Mathematics
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Solve the problem.How long will it take for prices in the economy to double at a 9% annual inflation rate? Round to the nearest hundredth.
A. 8.04 years B. 23.45 years C. 7.27 years D. 12.75 years
Mathematics
Solve the equation.
- 
= 3
A. {-2} B. {3, 8} C. {2, 38} D. {2}
Mathematics
Solve the problem.Tim needs to apply 2
gallons of herbicide per acre of soybeans. How many gallons of herbicide are needed for 388 acres?
A. 194
gallons
B. 196 gallons
C. 155
gallons
D. 970 gallons
Mathematics
Find the length of the latus rectum of the parabola.Focus: (0, 3); Directrix y = -3.
A. 6
B. 
C. 24
D. 12
Mathematics