For the following question(s), refer to the digraph below.
Vertex D is
A. incident to vertex E only.
B. incident to vertex C only.
C. incident to vertex A, B, C, and E.
D. incident to vertices C and E.
E. none of these
Answer: A
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Convert the equation to the standard form for a hyperbola by completing the square.4y2 - 25x2 + 8y - 50x - 121 = 0
A. 
- 
= 1
B. 
- 
= 1
C. 
- 
= 1
D. 
- 
= 1
The life expectancy of white females can be estimated by using the function 
, where x is the current age. Find the life expectancy of a white female who is currently 37 years old. Round to one decimal place.
?
A. 94.2 years B. 81.5 years C. 90.3 years D. 84.9 years E. 86.4 years
Find the area.
A. 182 cm2 B. 273 cm2 C. 41 cm2 D. 147 cm2
A garden store sells Kentucky bluegrass seed for $6 per pound and ryegrass seed for $3 per pound. How much rye must be mixed with 180 pounds of bluegrass to obtain a blend that will sell for $5 per pound?
A. 90 lb B. 60 lb C. 80 lb D. 105 lb E. 70 lb