Determine the eccentricity, the type of conic, and the directrix.r = 
A. Eccentricity = 2; ellipse; directrix x = - 
B. Eccentricity = 
; ellipse; directrix x = - 
C. Eccentricity = 
; hyperbola; directrix x = - 14
D. Eccentricity = 
; hyperbola; directrix y = - 
Answer: B
Mathematics
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Evaluate the sum.
A. 
B. 
C. 
D. 
Mathematics
Subtract the fractions. Write the answer in lowest terms.
- 
A. 
B. 
C. 
D. 
Mathematics
Convert the measurement as indicated. If necessary, write answers as mixed numbers.204 in. to feet
A. 1
ft
B. 17 ft
C. 68 ft
D. 612 ft
Mathematics
Solve the problem.A piece of cheese weighing 
pound is to be divided into 10 equal portions. What will be the weight of each portion?
A. 
pound
B. 2
pound(s)
C. 45 pounds
D. 
pound(s)
Mathematics